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| Date | Max Price | Avg Price | # Prices |
|---|---|---|---|
| 2012-02-04 | $68.89 | $36.80 | 9 |
| 2012-02-03 | $68.89 | $31.55 | 38 |
| 2012-02-02 | $68.89 | $34.44 | 25 |
| 2012-02-01 | $68.89 | $38.66 | 9 |
| 2012-01-31 | $68.89 | $34.68 | 27 |
| 2012-01-30 | $68.89 | $32.45 | 57 |
| 2012-01-29 | $68.89 | $31.48 | 45 |
| 2012-01-28 | $68.89 | $31.98 | 28 |
| 2012-01-27 | $59.42 | $31.97 | 11 |
| 2012-01-26 | $64.97 | $29.64 | 44 |
| 2012-01-25 | $64.60 | $27.71 | 36 |
| 2012-01-24 | $66.44 | $31.91 | 51 |
| 2012-01-23 | $69.66 | $35.94 | 12 |
| 2012-01-22 | $69.66 | $39.33 | 11 |
| 2012-01-21 | $69.66 | $31.19 | 60 |
| 2012-01-20 | $69.66 | $33.92 | 36 |
| 2012-01-19 | $69.66 | $31.67 | 105 |
| 2012-01-18 | $57.53 | $28.13 | 83 |
| 2012-01-17 | $66.12 | $30.72 | 59 |
| 2012-01-16 | $70.70 | $33.38 | 42 |
| 2012-01-15 | $75.53 | $37.34 | 9 |
| 2012-01-14 | $75.59 | $34.11 | 57 |
| 2012-01-13 | $61.34 | $30.79 | 27 |
| 2012-01-12 | $74.48 | $32.32 | 82 |
| 2012-01-11 | $69.85 | $32.99 | 24 |
| 2012-01-10 | $69.25 | $34.86 | 39 |
| 2012-01-09 | $64.79 | $39.06 | 10 |
| 2012-01-08 | $22.25 | $18.18 | 3 |
| 2012-01-07 | $67.74 | $35.76 | 87 |
| 2012-01-06 | $64.80 | $33.91 | 51 |
| 2012-01-05 | $65.70 | $27.16 | 22 |
| 2012-01-04 | $61.42 | $29.16 | 72 |
| 2012-01-02 | $54.47 | $27.94 | 80 |
| 2012-01-01 | $50.64 | $29.12 | 14 |
| 2011-12-31 | $51.07 | $28.17 | 41 |
| 2011-12-30 | $50.36 | $33.46 | 114 |
| 2011-12-29 | $54.03 | $31.99 | 203 |
| 2011-12-28 | $69.93 | $35.38 | 53 |
| 2011-12-27 | $68.93 | $37.07 | 68 |
| 2011-12-26 | $41.60 | $33.04 | 23 |
| 2011-12-23 | $53.45 | $32.66 | 30 |
| 2011-12-22 | $53.45 | $32.52 | 27 |
| 2011-12-21 | $68.93 | $31.46 | 77 |
| 2011-12-20 | $68.93 | $29.14 | 66 |
| 2011-12-19 | $68.82 | $31.46 | 17 |
| 2011-12-18 | $68.82 | $31.10 | 44 |
| 2011-12-17 | $73.95 | $30.74 | 60 |
| 2011-12-16 | $73.95 | $31.22 | 17 |
| 2011-12-15 | $74.95 | $31.85 | 95 |
| 2011-12-14 | $75.42 | $29.84 | 96 |
| 2011-12-13 | $75.42 | $28.36 | 48 |
| 2011-12-12 | $75.89 | $37.10 | 31 |
| 2011-12-11 | $75.89 | $34.89 | 31 |
| 2011-12-10 | $77.00 | $36.33 | 60 |
| 2011-12-09 | $79.95 | $40.07 | 45 |
| 2011-12-08 | $83.97 | $40.15 | 40 |
| 2011-12-07 | $91.64 | $40.25 | 70 |
| 2011-12-06 | $91.64 | $43.45 | 32 |
| 2011-12-04 | $91.64 | $43.03 | 17 |
| 2011-12-03 | $90.73 | $45.88 | 19 |
| 2011-12-02 | $83.42 | $40.90 | 16 |
| 2011-12-01 | $80.10 | $42.48 | 39 |
| 2011-11-30 | $83.42 | $44.09 | 54 |
| 2011-11-29 | $83.42 | $40.41 | 30 |
| 2011-11-28 | $70.48 | $44.11 | 40 |
| 2011-11-27 | $67.92 | $44.94 | 16 |
| 2011-11-23 | $65.00 | $39.85 | 60 |
| 2011-11-21 | $65.00 | $42.06 | 13 |
| 2011-11-19 | $65.00 | $53.60 | 3 |
| 2011-11-18 | $58.81 | $44.58 | 11 |
| 2011-11-17 | $67.93 | $45.92 | 17 |
| 2011-11-16 | $58.80 | $49.68 | 3 |
| 2011-11-15 | $67.93 | $46.15 | 27 |
| 2011-11-14 | $56.00 | $51.00 | 2 |
| 2011-11-12 | $57.75 | $42.89 | 12 |
| 2011-11-08 | $49.50 | $41.63 | 2 |
| 2011-11-05 | $65.79 | $46.17 | 40 |
| 2011-11-04 | $65.00 | $50.71 | 4 |
| 2011-10-31 | $91.95 | $50.72 | 29 |
| 2011-10-30 | $91.95 | $49.09 | 14 |
| 2011-10-29 | $91.95 | $48.16 | 47 |
| 2011-10-26 | $88.96 | $57.16 | 21 |
| 2011-10-25 | $72.24 | $51.63 | 37 |
| 2011-10-24 | $78.99 | $51.20 | 28 |
| 2011-10-20 | $90.99 | $49.96 | 79 |
| 2011-10-18 | $68.00 | $63.65 | 3 |
| 2011-10-17 | $88.37 | $54.21 | 34 |
| 2011-10-16 | $81.83 | $60.51 | 8 |
| 2011-10-15 | $88.37 | $57.41 | 17 |
| 2011-10-14 | $97.52 | $51.70 | 25 |
| 2011-10-13 | $97.52 | $55.37 | 34 |
| 2011-10-12 | $97.52 | $57.91 | 68 |
| 2011-10-11 | $97.52 | $58.37 | 51 |
| 2011-10-10 | $97.52 | $61.64 | 22 |
| 2011-10-09 | $75.49 | $58.13 | 9 |
| 2011-10-08 | $97.52 | $58.07 | 16 |
| 2011-10-06 | $97.52 | $55.93 | 63 |
| 2011-09-28 | $104.86 | $57.69 | 16 |
| 2011-09-26 | $104.86 | $58.53 | 49 |
| 2011-09-23 | $104.86 | $53.66 | 15 |
| 2011-09-20 | $104.86 | $52.30 | 49 |
| 2011-09-17 | $104.86 | $52.80 | 62 |
| 2011-09-16 | $104.86 | $53.44 | 79 |
| 2011-09-15 | $104.86 | $51.15 | 35 |
| 2011-09-13 | $72.24 | $51.17 | 89 |
| 2011-09-12 | $104.86 | $55.30 | 35 |
| 2011-09-09 | $104.86 | $52.09 | 31 |
| 2011-09-07 | $36.50 | $36.50 | 1 |
| 2011-09-05 | $97.42 | $56.36 | 16 |
| 2011-09-02 | $72.24 | $53.34 | 14 |
| 2011-08-31 | $97.42 | $49.73 | 16 |
| 2011-08-30 | $97.42 | $52.36 | 30 |
| 2011-08-29 | $97.42 | $51.77 | 34 |
| 2011-08-27 | $71.50 | $49.99 | 16 |
| 2011-08-26 | $97.42 | $52.78 | 34 |
| 2011-08-25 | $97.42 | $52.86 | 67 |
| 2011-08-23 | $97.42 | $53.00 | 34 |
| 2011-08-22 | $69.30 | $50.84 | 16 |
| 2011-08-21 | $97.42 | $62.28 | 11 |
| 2011-08-19 | $69.30 | $50.21 | 16 |
| 2011-08-18 | $79.90 | $51.54 | 51 |
| 2011-08-16 | $96.96 | $56.41 | 17 |
| 2011-08-15 | $96.96 | $53.60 | 88 |
| 2011-08-14 | $95.98 | $56.33 | 18 |
| 2011-08-12 | $76.01 | $54.72 | 14 |
| 2011-08-11 | $76.01 | $55.80 | 16 |
| 2011-08-10 | $84.50 | $60.47 | 17 |
| 2011-08-09 | $84.29 | $59.05 | 47 |
| 2011-08-05 | $84.29 | $58.56 | 17 |
| 2011-08-04 | $84.29 | $54.45 | 69 |
| 2011-08-03 | $84.29 | $56.58 | 17 |
| 2011-08-02 | $84.29 | $56.77 | 17 |
| 2011-07-29 | $84.29 | $56.85 | 35 |
| 2011-07-28 | $75.95 | $55.70 | 47 |
| 2011-07-27 | $84.29 | $56.38 | 47 |
| 2011-07-25 | $84.29 | $57.97 | 17 |
| 2011-07-20 | $84.29 | $57.76 | 17 |
| 2011-07-19 | $84.29 | $59.50 | 46 |
| 2011-07-18 | $84.29 | $59.40 | 16 |
| 2011-07-17 | $84.29 | $57.41 | 97 |
| 2011-07-15 | $84.29 | $58.25 | 33 |
| 2011-07-11 | $70.16 | $59.98 | 8 |
| 2011-07-08 | $84.29 | $57.90 | 18 |
| 2011-07-07 | $84.29 | $58.62 | 36 |
| 2011-07-05 | $84.29 | $58.99 | 19 |
| 2011-07-03 | $84.29 | $59.03 | 19 |
| 2011-07-02 | $84.29 | $59.45 | 57 |
| 2011-06-28 | $84.29 | $54.76 | 110 |
| 2011-06-27 | $84.29 | $53.53 | 19 |
| 2011-06-25 | $84.29 | $58.12 | 38 |
| 2011-06-24 | $84.29 | $61.84 | 35 |
| 2011-06-22 | $84.29 | $57.48 | 109 |
| 2011-06-21 | $84.29 | $62.01 | 19 |
| 2011-06-20 | $84.29 | $56.05 | 108 |
| 2011-06-19 | $84.29 | $57.41 | 38 |
| 2011-06-17 | $84.29 | $57.71 | 55 |
| 2011-06-14 | $84.29 | $59.48 | 38 |
| 2011-06-12 | $84.29 | $60.62 | 35 |
| 2011-06-11 | $84.29 | $60.31 | 35 |
| 2011-06-10 | $84.29 | $57.96 | 34 |
| 2011-06-09 | $84.29 | $53.94 | 182 |
| 2011-06-08 | $84.29 | $57.60 | 123 |
| 2011-06-07 | $84.29 | $60.01 | 71 |
| 2011-06-06 | $84.29 | $60.27 | 17 |
| 2011-06-05 | $84.29 | $61.27 | 17 |
| 2011-06-04 | $84.29 | $61.68 | 53 |
| 2011-06-03 | $84.29 | $60.61 | 18 |
| 2011-06-02 | $84.29 | $62.31 | 51 |
| 2011-06-01 | $84.29 | $62.92 | 34 |
| 2011-05-31 | $84.29 | $60.82 | 101 |
| 2011-05-30 | $72.24 | $61.03 | 17 |
| 2011-05-29 | $84.29 | $62.49 | 17 |
| 2011-05-28 | $84.29 | $62.93 | 17 |
| 2011-05-27 | $84.29 | $63.19 | 52 |
| 2011-05-26 | $84.29 | $59.14 | 101 |
| 2011-05-25 | $84.29 | $64.58 | 28 |
| 2011-05-24 | $78.50 | $65.06 | 82 |
| 2011-05-23 | $77.72 | $62.34 | 29 |
| 2011-05-22 | $77.72 | $57.22 | 99 |
| 2011-05-21 | $77.72 | $61.18 | 17 |
| 2011-05-20 | $77.72 | $63.49 | 16 |
| 2011-05-19 | $77.72 | $63.58 | 30 |
| 2011-05-18 | $77.72 | $60.41 | 51 |
| 2011-05-17 | $77.72 | $62.85 | 32 |
| 2011-05-16 | $77.72 | $61.90 | 33 |
| 2011-05-15 | $77.72 | $62.62 | 16 |
| 2011-05-14 | $77.72 | $60.58 | 30 |
| 2011-05-13 | $77.72 | $60.16 | 46 |
| 2011-05-12 | $77.72 | $58.18 | 31 |
| 2011-05-11 | $77.72 | $61.34 | 103 |
| 2011-05-10 | $86.28 | $66.29 | 32 |
| 2011-05-09 | $86.28 | $64.08 | 48 |
| 2011-05-08 | $86.28 | $59.84 | 17 |
| 2011-05-07 | $86.28 | $63.78 | 34 |
| 2011-05-06 | $80.00 | $66.92 | 33 |
| 2011-05-05 | $80.32 | $65.59 | 111 |
| 2011-05-04 | $80.32 | $66.74 | 30 |
| 2011-05-03 | $79.00 | $64.65 | 24 |
| 2011-05-02 | $79.00 | $61.38 | 12 |
| 2011-05-01 | $79.00 | $64.69 | 12 |
| 2011-04-30 | $80.09 | $66.07 | 28 |
| 2011-04-29 | $78.00 | $65.62 | 15 |
| 2011-04-28 | $78.00 | $65.04 | 79 |
| 2011-04-27 | $78.00 | $63.26 | 29 |
| 2011-04-26 | $78.00 | $64.49 | 44 |
| 2011-04-25 | $77.72 | $57.99 | 31 |
| 2011-04-24 | $77.72 | $59.90 | 32 |
| 2011-04-23 | $77.77 | $59.91 | 83 |
| 2011-04-22 | $77.72 | $61.48 | 30 |
| 2011-04-21 | $77.72 | $61.71 | 30 |
| 2011-04-20 | $77.72 | $62.18 | 15 |
| 2011-04-19 | $77.72 | $58.57 | 15 |
| 2011-04-18 | $77.72 | $60.12 | 45 |
| 2011-04-17 | $77.72 | $59.33 | 45 |
| 2011-04-16 | $80.77 | $62.02 | 16 |
| 2011-04-15 | $77.62 | $58.61 | 15 |
| 2011-04-14 | $77.62 | $58.52 | 31 |
| 2011-04-13 | $77.62 | $58.92 | 17 |
| 2011-04-12 | $77.62 | $58.93 | 15 |
| 2011-04-11 | $77.62 | $58.70 | 17 |
| 2011-04-10 | $77.62 | $58.61 | 33 |
| 2011-04-09 | $77.62 | $58.48 | 17 |
| 2011-04-08 | $79.25 | $58.94 | 17 |
| 2011-04-07 | $77.62 | $59.08 | 17 |
| 2011-04-06 | $77.62 | $58.41 | 33 |
| 2011-04-04 | $82.97 | $58.60 | 65 |
| 2011-04-02 | $77.62 | $58.47 | 86 |
| 2011-03-30 | $80.09 | $62.56 | 32 |
| 2011-03-26 | $77.62 | $60.31 | 16 |
| 2011-03-24 | $80.00 | $63.18 | 17 |
| 2011-03-22 | $80.50 | $62.90 | 82 |
| 2011-03-21 | $80.00 | $62.86 | 17 |
| 2011-03-20 | $80.50 | $63.03 | 17 |
| 2011-03-19 | $80.00 | $63.59 | 66 |
| 2011-03-14 | $80.00 | $62.47 | 16 |
| 2011-03-10 | $80.00 | $64.12 | 56 |
| 2011-03-09 | $80.00 | $65.00 | 18 |
| 2011-03-08 | $80.05 | $65.38 | 36 |
| 2011-03-07 | $80.00 | $63.92 | 16 |
| 2011-03-04 | $80.97 | $64.98 | 35 |
| 2011-03-03 | $81.28 | $64.95 | 36 |
| 2011-03-02 | $84.20 | $61.55 | 57 |
| 2011-02-26 | $84.30 | $63.05 | 16 |
| 2011-02-23 | $80.00 | $60.98 | 18 |
| 2011-02-22 | $80.00 | $61.44 | 18 |
| 2011-02-21 | $86.79 | $60.76 | 18 |
| 2011-02-20 | $88.25 | $60.62 | 18 |
| 2011-02-15 | $84.57 | $65.20 | 36 |
| 2011-02-14 | $84.87 | $65.79 | 35 |
| 2011-02-13 | $83.50 | $63.75 | 17 |
| 2011-02-11 | $86.41 | $65.29 | 107 |
| 2011-02-09 | $84.71 | $66.67 | 17 |
| 2011-02-04 | $84.84 | $65.78 | 17 |
| 2011-02-03 | $83.65 | $66.30 | 17 |
| 2011-02-02 | $83.81 | $64.91 | 67 |
| 2011-02-01 | $87.40 | $64.31 | 17 |
| 2011-01-29 | $87.84 | $65.24 | 17 |
| 2011-01-28 | $88.29 | $64.53 | 18 |
| 2011-01-26 | $88.33 | $65.07 | 54 |
| 2011-01-25 | $88.33 | $66.11 | 18 |
| 2011-01-24 | $88.33 | $66.50 | 52 |
| 2011-01-23 | $88.33 | $66.34 | 17 |
| 2011-01-20 | $90.10 | $64.44 | 18 |
| 2011-01-13 | $92.82 | $65.95 | 36 |
| 2011-01-12 | $91.84 | $65.58 | 32 |
| 2011-01-10 | $92.67 | $62.77 | 32 |
| 2011-01-09 | $89.34 | $65.34 | 36 |
| 2011-01-07 | $89.28 | $69.36 | 18 |
| 2011-01-06 | $90.98 | $69.38 | 32 |
| 2011-01-05 | $90.98 | $70.74 | 49 |
| 2011-01-04 | $90.98 | $71.46 | 16 |
| 2011-01-03 | $88.83 | $67.91 | 17 |
| 2011-01-02 | $90.98 | $67.89 | 16 |
| 2011-01-01 | $90.98 | $64.48 | 34 |
| 2010-12-30 | $85.86 | $66.32 | 33 |
| 2010-12-29 | $86.47 | $67.10 | 18 |
| 2010-12-28 | $89.17 | $67.18 | 36 |
| 2010-12-27 | $89.17 | $65.81 | 76 |
| 2010-12-26 | $91.50 | $66.99 | 54 |
| 2010-12-25 | $91.50 | $68.01 | 18 |
| 2010-12-24 | $91.50 | $64.06 | 42 |
| 2010-12-22 | $84.50 | $64.28 | 17 |
| 2010-12-20 | $84.50 | $64.38 | 17 |
| 2010-12-19 | $84.50 | $63.46 | 17 |
| 2010-12-17 | $84.50 | $63.12 | 17 |
| 2010-12-15 | $91.00 | $65.80 | 35 |
| 2010-12-14 | $91.00 | $65.57 | 52 |
| 2010-12-13 | $91.00 | $64.18 | 29 |
| 2010-12-10 | $91.00 | $64.42 | 34 |
| 2010-12-09 | $91.00 | $62.36 | 51 |
| 2010-12-08 | $91.00 | $62.65 | 66 |
| 2010-12-07 | $108.41 | $64.87 | 88 |
| 2010-12-06 | $108.41 | $63.66 | 87 |
| 2010-12-04 | $91.00 | $63.91 | 33 |
| 2010-12-03 | $91.00 | $65.15 | 17 |
| 2010-12-02 | $108.41 | $68.98 | 34 |
| 2010-12-01 | $108.41 | $66.68 | 58 |
| 2010-11-30 | $108.41 | $67.47 | 17 |
| 2010-11-29 | $108.41 | $68.00 | 17 |
| 2010-11-28 | $108.41 | $67.18 | 17 |
| 2010-11-25 | $108.41 | $66.21 | 17 |
| 2010-11-23 | $108.41 | $67.45 | 34 |
| 2010-11-22 | $108.41 | $68.36 | 51 |
| 2010-11-16 | $122.32 | $71.75 | 49 |
| 2010-11-15 | $122.32 | $70.11 | 33 |
| 2010-11-14 | $108.41 | $65.02 | 16 |
| 2010-11-13 | $108.41 | $65.62 | 16 |
| 2010-11-12 | $108.41 | $66.09 | 16 |
| 2010-11-09 | $122.32 | $63.88 | 53 |
| 2010-11-08 | $122.32 | $63.20 | 48 |
| 2010-11-07 | $122.32 | $65.09 | 48 |
| 2010-11-06 | $122.32 | $65.52 | 48 |
| 2010-11-05 | $122.32 | $65.99 | 138 |
| 2010-11-04 | $122.32 | $64.28 | 132 |
| 2010-11-03 | $122.32 | $62.89 | 83 |
| 2010-11-02 | $122.32 | $63.02 | 48 |
| 2010-11-01 | $122.32 | $67.31 | 79 |
| 2010-10-30 | $122.32 | $66.81 | 15 |
| 2010-10-29 | $122.32 | $67.00 | 64 |
| 2010-10-28 | $122.32 | $67.06 | 83 |
| 2010-10-27 | $122.32 | $68.78 | 61 |
| 2010-10-26 | $122.32 | $68.21 | 144 |
| 2010-10-23 | $122.32 | $68.16 | 32 |
| 2010-10-21 | $122.32 | $69.97 | 32 |
| 2010-10-18 | $122.32 | $72.72 | 56 |
| 2010-10-15 | $122.32 | $69.37 | 14 |
| 2010-10-14 | $122.32 | $69.39 | 32 |
| 2010-10-05 | $122.32 | $69.11 | 16 |
| 2010-10-04 | $100.10 | $72.14 | 21 |
| 2010-10-03 | $122.32 | $67.61 | 32 |
| 2010-10-02 | $122.32 | $68.69 | 16 |
| 2010-10-01 | $122.32 | $69.16 | 16 |
| 2010-09-30 | $122.32 | $68.75 | 16 |
| 2010-09-28 | $122.32 | $71.18 | 16 |
| 2010-09-27 | $122.32 | $68.48 | 32 |
| 2010-09-26 | $122.32 | $66.32 | 18 |
| 2010-09-23 | $122.32 | $71.22 | 31 |
| 2010-09-21 | $122.32 | $68.82 | 31 |
| 2010-09-18 | $122.32 | $67.29 | 47 |
| 2010-09-17 | $122.32 | $68.36 | 16 |
| 2010-09-14 | $122.32 | $72.01 | 16 |
| 2010-09-13 | $122.32 | $71.93 | 65 |
| 2010-09-11 | $122.32 | $68.22 | 16 |
| 2010-09-10 | $122.32 | $72.69 | 16 |
| 2010-09-09 | $122.32 | $71.37 | 54 |
| 2010-09-07 | $122.32 | $74.27 | 17 |
| 2010-09-04 | $122.32 | $74.24 | 17 |
| 2010-09-03 | $122.32 | $74.13 | 17 |
| 2010-09-02 | $122.32 | $74.34 | 17 |
| 2010-09-01 | $122.32 | $69.77 | 34 |
| 2010-08-31 | $122.32 | $67.19 | 32 |
| 2010-08-29 | $122.32 | $73.99 | 34 |
| 2010-08-25 | $122.32 | $75.80 | 34 |
| 2010-08-24 | $122.32 | $75.50 | 16 |
| 2010-08-21 | $122.32 | $81.92 | 34 |
| 2010-08-20 | $122.32 | $78.86 | 18 |
| 2010-08-17 | $122.32 | $74.89 | 53 |
| 2010-08-16 | $122.32 | $73.71 | 33 |
| 2010-08-15 | $122.32 | $68.50 | 18 |
| 2010-08-14 | $122.32 | $69.76 | 18 |
| 2010-08-13 | $122.32 | $75.14 | 17 |
| 2010-08-12 | $122.32 | $74.18 | 55 |
| 2010-08-09 | $105.70 | $76.71 | 16 |
| 2010-08-08 | $106.20 | $74.36 | 108 |
| 2010-08-01 | $118.80 | $67.21 | 16 |
| 2010-07-28 | $118.80 | $65.89 | 32 |
| 2010-07-27 | $118.80 | $66.96 | 48 |
| 2010-07-19 | $118.80 | $67.87 | 18 |
| 2010-07-16 | $118.80 | $69.07 | 50 |
| 2010-07-15 | $118.80 | $66.90 | 179 |
| 2010-07-14 | $118.80 | $69.35 | 54 |
| 2010-07-13 | $118.80 | $68.74 | 18 |
| 2010-07-06 | $118.80 | $68.38 | 35 |
| 2010-06-26 | $118.80 | $70.38 | 36 |
| 2010-06-25 | $118.80 | $71.46 | 18 |
| 2010-06-24 | $118.80 | $71.32 | 18 |
| 2010-06-14 | $118.80 | $66.29 | 57 |
| 2010-06-11 | $118.80 | $73.85 | 18 |
| 2010-06-10 | $118.80 | $73.80 | 18 |
| 2010-06-06 | $118.80 | $70.05 | 53 |
| 2010-06-05 | $118.80 | $71.26 | 18 |
| 2010-06-01 | $98.01 | $63.74 | 18 |
| 2010-05-31 | $97.97 | $63.34 | 18 |
| 2010-05-26 | $97.03 | $61.17 | 36 |
| 2010-05-25 | $97.03 | $61.24 | 18 |
| 2010-05-21 | $97.02 | $60.66 | 18 |
| 2010-05-18 | $95.75 | $58.99 | 34 |
| 2010-05-14 | $94.75 | $57.01 | 68 |
| 2010-05-13 | $94.50 | $59.78 | 17 |
| 2010-05-12 | $88.20 | $59.56 | 67 |
| 2010-05-11 | $108.40 | $61.57 | 47 |
| 2010-05-10 | $86.33 | $61.86 | 17 |
| 2010-05-08 | $86.33 | $59.51 | 64 |
| 2010-05-04 | $86.29 | $59.30 | 127 |
| 2010-04-29 | $86.00 | $59.66 | 63 |
| 2010-04-20 | $85.50 | $66.90 | 28 |
| 2010-04-17 | $81.26 | $65.69 | 27 |
| 2010-04-14 | $92.32 | $67.81 | 27 |
| 2010-04-06 | $87.19 | $65.40 | 82 |
| 2010-03-30 | $87.02 | $57.24 | 29 |
| 2010-03-25 | $87.00 | $57.07 | 29 |
| 2010-03-24 | $86.94 | $56.74 | 29 |
| 2010-03-18 | $87.04 | $64.39 | 28 |
| 2010-03-14 | $94.19 | $63.04 | 26 |
| 2010-03-08 | $87.13 | $62.57 | 27 |
| 2010-03-07 | $87.13 | $61.87 | 28 |
| 2010-03-01 | $86.94 | $65.09 | 56 |
| 2010-02-28 | $86.94 | $65.10 | 83 |
| 2010-02-22 | $86.94 | $63.26 | 191 |
| 2010-02-21 | $86.94 | $56.32 | 29 |
| 2010-02-19 | $86.94 | $54.58 | 29 |
| 2010-02-15 | $91.25 | $60.53 | 28 |
| 2010-02-14 | $91.25 | $63.57 | 87 |
| 2010-02-12 | $91.25 | $63.95 | 27 |
| 2010-02-05 | $89.50 | $66.85 | 25 |
| 2010-02-04 | $89.50 | $67.53 | 25 |
| 2010-01-31 | $84.18 | $66.84 | 27 |
| 2010-01-25 | $86.46 | $68.85 | 27 |
| 2010-01-23 | $86.65 | $69.63 | 26 |
| 2010-01-22 | $90.70 | $69.47 | 27 |
| 2010-01-19 | $90.81 | $70.10 | 52 |
| 2010-01-17 | $90.81 | $69.35 | 27 |
| 2010-01-11 | $91.17 | $71.04 | 26 |
| 2010-01-07 | $89.65 | $70.81 | 81 |
| 2010-01-06 | $97.16 | $71.32 | 56 |
| 2010-01-05 | $97.16 | $15.84 | 246 |
| 2010-01-03 | $93.25 | $71.44 | 27 |
| 2010-01-02 | $95.12 | $70.99 | 53 |
| 2009-12-29 | $94.10 | $69.69 | 28 |
| 2009-12-24 | $91.27 | $69.38 | 28 |
| 2009-12-16 | $86.34 | $67.23 | 29 |
| 2009-12-15 | $86.34 | $64.39 | 87 |
| 2009-12-12 | $86.34 | $63.55 | 57 |
| 2009-12-10 | $86.34 | $63.34 | 64 |
| 2009-12-08 | $86.34 | $67.11 | 29 |
| 2009-12-06 | $87.35 | $68.37 | 31 |
| 2009-12-01 | $88.21 | $69.44 | 31 |
| 2009-11-27 | $89.07 | $68.88 | 30 |
| 2009-11-18 | $114.18 | $63.37 | 31 |
| 2009-11-12 | $114.18 | $67.51 | 59 |
| 2009-11-05 | $110.60 | $68.37 | 30 |
| 2009-10-31 | $105.79 | $62.49 | 30 |
| 2009-10-19 | $95.76 | $70.61 | 28 |
| 2009-10-08 | $80.82 | $60.39 | 30 |
| 2009-10-06 | $80.82 | $68.39 | 28 |
| 2009-10-05 | $85.70 | $68.55 | 28 |
| 2009-10-03 | $80.82 | $67.92 | 54 |
| 2009-09-29 | $80.82 | $58.68 | 84 |
| 2009-09-26 | $80.82 | $62.40 | 28 |
| 2009-09-11 | $98.50 | $68.50 | 30 |
| 2009-09-10 | $80.82 | $68.54 | 29 |
| 2009-09-03 | $91.70 | $74.78 | 22 |
| 2009-09-02 | $91.70 | $73.04 | 83 |
| 2009-09-01 | $91.70 | $72.78 | 86 |
| 2009-08-30 | $91.70 | $71.79 | 86 |
| 2009-08-28 | $91.70 | $72.34 | 60 |
| 2009-08-25 | $91.70 | $71.99 | 59 |
| 2009-08-22 | $91.70 | $71.21 | 29 |
| 2009-08-20 | $91.70 | $72.18 | 80 |
| 2009-08-18 | $91.70 | $70.86 | 25 |
| 2009-08-12 | $93.95 | $70.39 | 58 |
| 2009-08-03 | $93.95 | $69.39 | 30 |
| 2009-07-01 | $94.20 | $64.51 | 31 |
| 2009-04-13 | $81.45 | $58.88 | 29 |
| 2009-04-10 | $81.45 | $58.68 | 29 |