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| Date | Max Price | Avg Price | # Prices |
|---|---|---|---|
| 2012-02-03 | $24.60 | $12.54 | 15 |
| 2012-02-01 | $24.60 | $13.28 | 44 |
| 2012-01-31 | $24.60 | $14.12 | 128 |
| 2012-01-30 | $23.62 | $13.92 | 106 |
| 2012-01-29 | $22.22 | $13.48 | 90 |
| 2012-01-28 | $26.15 | $14.80 | 58 |
| 2012-01-27 | $22.51 | $14.62 | 26 |
| 2012-01-26 | $23.01 | $16.05 | 60 |
| 2012-01-25 | $23.75 | $16.26 | 117 |
| 2012-01-24 | $26.58 | $16.89 | 82 |
| 2012-01-23 | $26.61 | $16.27 | 112 |
| 2012-01-22 | $26.40 | $18.01 | 14 |
| 2012-01-21 | $30.19 | $16.71 | 60 |
| 2012-01-20 | $33.61 | $18.41 | 266 |
| 2012-01-19 | $30.85 | $14.60 | 126 |
| 2012-01-18 | $24.17 | $14.42 | 44 |
| 2012-01-17 | $24.78 | $15.12 | 73 |
| 2012-01-16 | $24.88 | $15.71 | 62 |
| 2012-01-15 | $27.24 | $16.66 | 41 |
| 2012-01-14 | $27.27 | $16.50 | 75 |
| 2012-01-13 | $27.55 | $16.09 | 74 |
| 2012-01-12 | $27.59 | $16.34 | 20 |
| 2012-01-11 | $22.90 | $13.24 | 88 |
| 2012-01-10 | $25.83 | $13.73 | 82 |
| 2012-01-09 | $24.73 | $13.59 | 101 |
| 2012-01-08 | $23.19 | $13.57 | 51 |
| 2012-01-07 | $23.19 | $12.51 | 24 |
| 2012-01-06 | $21.64 | $11.87 | 49 |
| 2012-01-05 | $18.29 | $10.44 | 109 |
| 2012-01-04 | $18.29 | $9.46 | 90 |
| 2012-01-03 | $16.74 | $8.86 | 81 |
| 2012-01-02 | $16.71 | $9.23 | 48 |
| 2012-01-01 | $16.71 | $9.36 | 38 |
| 2011-12-31 | $19.12 | $10.90 | 65 |
| 2011-12-30 | $17.45 | $10.48 | 67 |
| 2011-12-29 | $16.91 | $10.98 | 12 |
| 2011-12-28 | $22.38 | $12.98 | 27 |
| 2011-12-27 | $22.38 | $13.94 | 95 |
| 2011-12-26 | $22.38 | $13.35 | 40 |
| 2011-12-25 | $21.50 | $14.06 | 54 |
| 2011-12-24 | $20.00 | $12.80 | 102 |
| 2011-12-23 | $20.00 | $17.34 | 4 |
| 2011-12-21 | $22.50 | $10.40 | 55 |
| 2011-12-20 | $20.98 | $9.89 | 73 |
| 2011-12-19 | $13.88 | $8.44 | 42 |
| 2011-12-18 | $19.97 | $9.52 | 29 |
| 2011-12-17 | $19.97 | $9.27 | 34 |
| 2011-12-16 | $19.97 | $9.21 | 92 |
| 2011-12-15 | $19.98 | $9.49 | 25 |
| 2011-12-14 | $20.00 | $9.00 | 89 |
| 2011-12-13 | $20.00 | $9.32 | 44 |
| 2011-12-12 | $20.00 | $8.89 | 87 |
| 2011-12-11 | $11.06 | $7.79 | 43 |
| 2011-12-10 | $14.13 | $8.06 | 24 |
| 2011-12-09 | $22.00 | $8.32 | 58 |
| 2011-12-08 | $25.20 | $8.18 | 161 |
| 2011-12-07 | $25.15 | $9.51 | 114 |
| 2011-12-06 | $25.15 | $9.79 | 128 |
| 2011-12-05 | $25.15 | $10.00 | 90 |
| 2011-12-04 | $25.15 | $11.18 | 38 |
| 2011-12-02 | $25.15 | $11.75 | 26 |
| 2011-12-01 | $25.15 | $11.13 | 83 |
| 2011-11-30 | $25.15 | $11.03 | 98 |
| 2011-11-29 | $25.15 | $9.97 | 69 |
| 2011-11-28 | $25.15 | $10.74 | 72 |
| 2011-11-27 | $25.15 | $11.21 | 19 |
| 2011-11-25 | $13.93 | $8.57 | 12 |
| 2011-11-23 | $20.00 | $9.69 | 63 |
| 2011-11-21 | $20.00 | $11.56 | 20 |
| 2011-11-20 | $20.00 | $11.76 | 10 |
| 2011-11-19 | $16.50 | $14.75 | 2 |
| 2011-11-18 | $20.00 | $10.97 | 48 |
| 2011-11-17 | $20.00 | $11.19 | 81 |
| 2011-11-16 | $20.00 | $11.67 | 28 |
| 2011-11-15 | $20.00 | $11.37 | 20 |
| 2011-11-14 | $13.00 | $13.00 | 1 |
| 2011-11-13 | $20.00 | $10.34 | 17 |
| 2011-11-11 | $20.00 | $11.61 | 8 |
| 2011-11-08 | $20.00 | $12.08 | 14 |
| 2011-11-07 | $20.00 | $12.13 | 10 |
| 2011-11-06 | $20.00 | $11.10 | 20 |
| 2011-11-05 | $16.25 | $12.05 | 5 |
| 2011-11-04 | $20.00 | $10.61 | 15 |
| 2011-11-03 | $20.12 | $15.20 | 3 |
| 2011-11-02 | $21.50 | $12.74 | 30 |
| 2011-11-01 | $20.00 | $12.36 | 20 |
| 2011-10-31 | $20.00 | $12.61 | 10 |
| 2011-10-30 | $20.14 | $12.81 | 13 |
| 2011-10-29 | $20.60 | $13.28 | 16 |
| 2011-10-28 | $20.31 | $12.15 | 32 |
| 2011-10-27 | $45.32 | $13.15 | 46 |
| 2011-10-26 | $45.32 | $16.04 | 38 |
| 2011-10-24 | $40.70 | $15.30 | 43 |
| 2011-10-23 | $40.70 | $16.44 | 11 |
| 2011-10-22 | $40.70 | $16.16 | 13 |
| 2011-10-19 | $47.61 | $16.00 | 63 |
| 2011-10-18 | $25.26 | $20.67 | 3 |
| 2011-10-17 | $47.61 | $17.38 | 26 |
| 2011-10-16 | $20.00 | $13.83 | 16 |
| 2011-10-15 | $21.04 | $15.55 | 13 |
| 2011-10-14 | $46.63 | $17.62 | 27 |
| 2011-10-13 | $45.91 | $16.90 | 50 |
| 2011-10-12 | $21.67 | $15.45 | 28 |
| 2011-10-11 | $46.63 | $18.41 | 13 |
| 2011-10-10 | $24.42 | $15.09 | 24 |
| 2011-10-09 | $24.42 | $14.88 | 28 |
| 2011-10-08 | $24.42 | $15.03 | 22 |
| 2011-10-05 | $25.75 | $16.84 | 11 |
| 2011-10-04 | $54.46 | $18.81 | 75 |
| 2011-10-02 | $56.31 | $18.81 | 40 |
| 2011-10-01 | $56.31 | $21.15 | 30 |
| 2011-09-30 | $25.75 | $17.31 | 67 |
| 2011-09-29 | $82.60 | $22.59 | 48 |
| 2011-09-28 | $82.60 | $21.06 | 43 |
| 2011-09-26 | $82.60 | $20.72 | 48 |
| 2011-09-21 | $82.60 | $23.74 | 11 |
| 2011-09-18 | $82.60 | $24.90 | 46 |
| 2011-09-16 | $82.60 | $23.13 | 13 |
| 2011-09-13 | $82.60 | $22.51 | 34 |
| 2011-09-12 | $82.60 | $27.00 | 28 |
| 2011-09-09 | $82.60 | $34.18 | 31 |
| 2011-09-08 | $82.60 | $34.53 | 10 |
| 2011-09-07 | $82.60 | $36.09 | 10 |
| 2011-09-05 | $82.60 | $36.26 | 54 |
| 2011-09-04 | $82.60 | $36.59 | 33 |
| 2011-09-03 | $82.60 | $34.24 | 20 |
| 2011-09-01 | $82.60 | $36.43 | 132 |
| 2011-08-31 | $44.25 | $33.16 | 10 |
| 2011-08-30 | $82.60 | $35.21 | 31 |
| 2011-08-29 | $82.60 | $32.06 | 50 |
| 2011-08-25 | $82.60 | $38.09 | 33 |
| 2011-08-24 | $82.60 | $35.59 | 21 |
| 2011-08-23 | $82.60 | $33.81 | 67 |
| 2011-08-22 | $82.60 | $33.22 | 20 |
| 2011-08-20 | $82.60 | $33.29 | 77 |
| 2011-08-18 | $82.60 | $26.84 | 62 |
| 2011-08-17 | $82.60 | $30.27 | 26 |
| 2011-08-15 | $82.60 | $27.62 | 64 |
| 2011-08-14 | $82.60 | $31.14 | 28 |
| 2011-08-11 | $82.60 | $27.61 | 45 |
| 2011-08-09 | $82.60 | $31.71 | 24 |
| 2011-08-08 | $68.75 | $33.95 | 36 |
| 2011-08-07 | $82.60 | $29.55 | 36 |
| 2011-08-06 | $82.60 | $31.09 | 14 |
| 2011-08-05 | $82.60 | $33.33 | 14 |
| 2011-08-04 | $82.60 | $34.51 | 13 |
| 2011-08-03 | $82.60 | $33.81 | 74 |
| 2011-08-02 | $68.75 | $32.71 | 36 |
| 2011-08-01 | $82.60 | $34.15 | 39 |
| 2011-07-31 | $82.60 | $33.38 | 25 |
| 2011-07-30 | $82.60 | $35.91 | 39 |
| 2011-07-29 | $82.60 | $33.02 | 54 |
| 2011-07-28 | $82.60 | $34.75 | 33 |
| 2011-07-27 | $82.60 | $37.15 | 34 |
| 2011-07-26 | $82.60 | $35.14 | 21 |
| 2011-07-25 | $82.60 | $34.54 | 38 |
| 2011-07-24 | $82.60 | $33.62 | 28 |
| 2011-07-22 | $82.60 | $34.18 | 41 |
| 2011-07-21 | $82.60 | $31.95 | 27 |
| 2011-07-20 | $82.60 | $33.29 | 13 |
| 2011-07-19 | $82.60 | $29.09 | 105 |
| 2011-07-18 | $82.60 | $31.07 | 35 |
| 2011-07-17 | $82.60 | $32.15 | 12 |
| 2011-07-15 | $82.60 | $31.83 | 39 |
| 2011-07-14 | $82.60 | $28.77 | 51 |
| 2011-07-11 | $82.60 | $29.69 | 13 |
| 2011-07-08 | $82.60 | $31.55 | 13 |
| 2011-07-07 | $82.60 | $31.57 | 13 |
| 2011-06-29 | $82.60 | $30.56 | 63 |
| 2011-06-28 | $82.60 | $31.13 | 32 |
| 2011-06-27 | $82.60 | $28.94 | 16 |
| 2011-06-26 | $82.60 | $27.62 | 43 |
| 2011-06-24 | $82.60 | $29.88 | 15 |
| 2011-06-22 | $82.60 | $31.40 | 15 |
| 2011-06-18 | $82.60 | $30.02 | 32 |
| 2011-06-17 | $82.60 | $30.98 | 16 |
| 2011-06-16 | $82.60 | $31.08 | 64 |
| 2011-06-15 | $82.60 | $31.43 | 78 |
| 2011-06-14 | $82.60 | $31.39 | 16 |
| 2011-06-13 | $82.60 | $31.84 | 32 |
| 2011-06-12 | $82.60 | $32.24 | 55 |
| 2011-06-10 | $82.60 | $37.72 | 28 |
| 2011-06-09 | $82.60 | $38.16 | 70 |
| 2011-06-08 | $82.60 | $33.88 | 25 |
| 2011-06-07 | $82.60 | $36.80 | 52 |
| 2011-06-06 | $82.60 | $35.50 | 14 |
| 2011-06-04 | $82.60 | $39.05 | 27 |
| 2011-06-03 | $82.60 | $38.59 | 98 |
| 2011-06-02 | $82.60 | $39.33 | 15 |
| 2011-05-31 | $82.60 | $33.75 | 83 |
| 2011-05-30 | $82.60 | $38.84 | 44 |
| 2011-05-28 | $82.60 | $34.79 | 43 |
| 2011-05-27 | $82.60 | $36.00 | 30 |
| 2011-05-26 | $82.60 | $36.70 | 13 |
| 2011-05-24 | $82.50 | $32.57 | 99 |
| 2011-05-23 | $72.49 | $30.74 | 59 |
| 2011-05-22 | $72.49 | $37.52 | 12 |
| 2011-05-21 | $72.49 | $34.38 | 26 |
| 2011-05-20 | $72.49 | $36.40 | 42 |
| 2011-05-19 | $72.49 | $37.91 | 13 |
| 2011-05-18 | $72.49 | $39.13 | 27 |
| 2011-05-17 | $72.49 | $38.59 | 13 |
| 2011-05-15 | $72.49 | $35.41 | 14 |
| 2011-05-14 | $72.49 | $35.10 | 14 |
| 2011-05-12 | $72.49 | $29.10 | 43 |
| 2011-05-11 | $72.49 | $30.89 | 83 |
| 2011-05-10 | $72.49 | $32.82 | 13 |
| 2011-05-07 | $72.49 | $26.19 | 63 |
| 2011-05-06 | $72.49 | $27.70 | 45 |
| 2011-05-05 | $72.49 | $28.86 | 46 |
| 2011-05-04 | $72.49 | $26.16 | 40 |
| 2011-05-03 | $72.49 | $31.05 | 96 |
| 2011-05-02 | $72.49 | $28.58 | 84 |
| 2011-05-01 | $72.49 | $29.20 | 22 |
| 2011-04-30 | $72.49 | $28.99 | 63 |
| 2011-04-29 | $72.49 | $30.09 | 135 |
| 2011-04-28 | $72.49 | $28.80 | 50 |
| 2011-04-27 | $72.49 | $30.00 | 48 |
| 2011-04-26 | $72.49 | $29.02 | 12 |
| 2011-04-25 | $72.49 | $26.09 | 8 |
| 2011-04-24 | $72.49 | $31.59 | 11 |
| 2011-04-22 | $72.49 | $29.83 | 12 |
| 2011-04-21 | $72.49 | $30.60 | 23 |
| 2011-04-20 | $72.49 | $30.79 | 12 |
| 2011-04-19 | $72.49 | $32.29 | 11 |
| 2011-04-18 | $72.49 | $30.16 | 12 |
| 2011-04-14 | $45.00 | $26.93 | 11 |
| 2011-04-07 | $40.75 | $26.90 | 11 |
| 2011-04-06 | $41.51 | $25.87 | 21 |
| 2011-04-04 | $41.52 | $26.07 | 11 |
| 2011-04-02 | $41.97 | $23.70 | 26 |
| 2011-03-31 | $42.03 | $24.55 | 59 |
| 2011-03-30 | $36.12 | $23.44 | 12 |
| 2011-03-29 | $62.01 | $24.20 | 12 |
| 2011-03-28 | $62.01 | $26.11 | 21 |
| 2011-03-26 | $62.01 | $26.66 | 20 |
| 2011-03-22 | $62.01 | $26.02 | 91 |
| 2011-03-21 | $62.01 | $26.57 | 48 |
| 2011-03-20 | $62.01 | $25.66 | 60 |
| 2011-03-19 | $62.01 | $26.76 | 12 |
| 2011-03-18 | $62.01 | $27.23 | 12 |
| 2011-03-16 | $62.01 | $30.13 | 12 |
| 2011-03-14 | $62.01 | $27.67 | 14 |
| 2011-03-12 | $62.01 | $28.43 | 13 |
| 2011-03-10 | $62.01 | $27.82 | 26 |
| 2011-03-09 | $62.01 | $29.97 | 14 |
| 2011-03-08 | $62.01 | $29.05 | 24 |
| 2011-03-07 | $63.43 | $33.54 | 12 |
| 2011-03-06 | $65.91 | $31.92 | 45 |
| 2011-03-03 | $62.01 | $29.96 | 14 |
| 2011-02-28 | $62.01 | $27.27 | 27 |
| 2011-02-25 | $62.01 | $30.78 | 12 |
| 2011-02-24 | $62.01 | $29.69 | 55 |
| 2011-02-23 | $62.01 | $29.87 | 13 |
| 2011-02-22 | $67.48 | $32.18 | 38 |
| 2011-02-21 | $67.49 | $34.34 | 12 |
| 2011-02-20 | $62.10 | $33.09 | 12 |
| 2011-02-17 | $62.02 | $36.83 | 24 |
| 2011-02-16 | $69.52 | $38.56 | 36 |
| 2011-02-15 | $69.00 | $32.79 | 12 |
| 2011-02-14 | $62.01 | $30.33 | 12 |
| 2011-02-13 | $62.02 | $31.38 | 12 |
| 2011-02-11 | $73.78 | $34.52 | 37 |
| 2011-02-10 | $72.72 | $34.85 | 26 |
| 2011-02-09 | $73.79 | $32.01 | 38 |
| 2011-02-07 | $68.97 | $34.63 | 39 |
| 2011-02-06 | $68.97 | $34.55 | 13 |
| 2011-02-04 | $70.99 | $39.78 | 11 |
| 2011-01-31 | $80.50 | $49.43 | 9 |
| 2011-01-30 | $83.80 | $43.09 | 12 |
| 2011-01-29 | $86.23 | $41.16 | 23 |
| 2011-01-27 | $71.50 | $34.98 | 13 |
| 2011-01-26 | $71.50 | $38.62 | 12 |
| 2011-01-25 | $88.74 | $47.18 | 33 |
| 2011-01-15 | $92.84 | $50.76 | 72 |
| 2011-01-14 | $94.10 | $46.77 | 12 |
| 2011-01-13 | $92.84 | $51.20 | 11 |
| 2011-01-12 | $77.00 | $44.08 | 9 |
| 2011-01-11 | $91.56 | $53.40 | 11 |
| 2011-01-10 | $85.20 | $51.87 | 31 |
| 2011-01-09 | $88.75 | $52.27 | 37 |
| 2011-01-08 | $90.98 | $54.20 | 11 |
| 2011-01-07 | $90.68 | $65.15 | 9 |
| 2011-01-06 | $90.68 | $62.08 | 10 |
| 2011-01-04 | $92.24 | $56.59 | 10 |
| 2011-01-03 | $93.62 | $65.52 | 12 |
| 2011-01-01 | $90.00 | $45.59 | 31 |
| 2010-12-30 | $90.00 | $55.37 | 14 |
| 2010-12-26 | $80.26 | $51.58 | 13 |
| 2010-12-25 | $73.00 | $49.10 | 13 |
| 2010-12-24 | $73.00 | $49.16 | 42 |
| 2010-12-19 | $71.50 | $41.07 | 59 |
| 2010-12-18 | $71.50 | $43.81 | 14 |
| 2010-12-17 | $71.50 | $40.71 | 78 |
| 2010-12-16 | $71.50 | $42.95 | 52 |
| 2010-12-15 | $71.50 | $43.31 | 31 |
| 2010-12-14 | $71.50 | $42.68 | 97 |
| 2010-12-12 | $71.50 | $38.04 | 82 |
| 2010-12-11 | $71.50 | $42.39 | 32 |
| 2010-12-09 | $71.50 | $46.37 | 58 |
| 2010-12-07 | $103.52 | $49.74 | 57 |
| 2010-12-06 | $103.52 | $53.71 | 13 |
| 2010-12-05 | $71.50 | $47.21 | 39 |
| 2010-12-04 | $71.50 | $50.27 | 14 |
| 2010-12-03 | $71.50 | $45.79 | 60 |
| 2010-12-01 | $103.52 | $48.37 | 67 |
| 2010-11-29 | $103.52 | $48.68 | 28 |
| 2010-11-23 | $103.52 | $53.88 | 26 |
| 2010-11-22 | $103.52 | $54.57 | 13 |
| 2010-11-18 | $103.52 | $53.87 | 12 |
| 2010-11-17 | $103.52 | $52.57 | 12 |
| 2010-11-10 | $71.50 | $43.52 | 13 |
| 2010-11-09 | $71.50 | $45.74 | 24 |
| 2010-11-07 | $71.50 | $44.79 | 28 |
| 2010-11-04 | $71.50 | $42.61 | 59 |
| 2010-11-02 | $71.50 | $46.49 | 14 |
| 2010-11-01 | $71.50 | $48.22 | 42 |
| 2010-10-31 | $71.50 | $50.87 | 28 |
| 2010-10-29 | $71.50 | $48.39 | 27 |
| 2010-10-27 | $126.02 | $52.86 | 24 |
| 2010-10-26 | $126.02 | $49.48 | 112 |
| 2010-10-25 | $126.02 | $53.10 | 42 |
| 2010-10-21 | $126.02 | $64.78 | 13 |
| 2010-10-20 | $126.02 | $66.46 | 52 |
| 2010-10-19 | $126.02 | $67.26 | 52 |
| 2010-10-15 | $126.02 | $63.63 | 14 |
| 2010-10-10 | $126.02 | $62.19 | 15 |
| 2010-10-08 | $126.02 | $62.27 | 70 |
| 2010-09-29 | $126.02 | $67.18 | 32 |
| 2010-09-28 | $126.02 | $68.55 | 16 |
| 2010-09-27 | $126.02 | $64.36 | 65 |
| 2010-09-25 | $126.02 | $62.80 | 37 |
| 2010-09-24 | $126.02 | $69.97 | 16 |
| 2010-09-14 | $126.02 | $70.44 | 16 |
| 2010-09-12 | $126.02 | $68.62 | 16 |
| 2010-09-10 | $126.02 | $70.48 | 31 |
| 2010-09-09 | $126.02 | $69.28 | 33 |
| 2010-09-06 | $126.02 | $65.83 | 34 |
| 2010-09-05 | $126.02 | $65.98 | 50 |
| 2010-09-04 | $126.02 | $69.70 | 34 |
| 2010-09-03 | $126.02 | $69.14 | 34 |
| 2010-09-02 | $126.02 | $68.32 | 17 |
| 2010-09-01 | $126.02 | $68.81 | 51 |
| 2010-08-28 | $126.02 | $66.79 | 71 |
| 2010-08-25 | $126.02 | $67.93 | 70 |
| 2010-08-24 | $126.02 | $70.71 | 33 |
| 2010-08-17 | $126.02 | $75.50 | 34 |
| 2010-08-15 | $126.02 | $74.50 | 17 |
| 2010-08-13 | $126.02 | $74.16 | 16 |
| 2010-08-12 | $126.02 | $73.71 | 16 |
| 2010-08-11 | $126.02 | $72.27 | 66 |
| 2010-08-08 | $125.34 | $71.54 | 33 |
| 2010-08-05 | $120.60 | $73.26 | 16 |
| 2010-08-04 | $120.60 | $71.18 | 81 |
| 2010-07-30 | $120.60 | $69.96 | 15 |
| 2010-07-29 | $120.60 | $68.31 | 65 |
| 2010-07-27 | $120.60 | $70.89 | 15 |
| 2010-07-20 | $120.60 | $70.77 | 85 |
| 2010-07-19 | $120.60 | $71.11 | 17 |
| 2010-07-16 | $120.60 | $70.65 | 17 |
| 2010-07-15 | $120.60 | $71.20 | 33 |
| 2010-07-12 | $102.10 | $65.84 | 16 |
| 2010-07-11 | $120.60 | $69.37 | 32 |
| 2010-07-10 | $120.60 | $68.92 | 34 |
| 2010-07-07 | $120.60 | $68.80 | 16 |
| 2010-07-06 | $120.60 | $65.92 | 103 |
| 2010-07-05 | $120.60 | $66.86 | 50 |
| 2010-07-04 | $120.60 | $67.48 | 15 |
| 2010-06-29 | $109.79 | $65.49 | 33 |
| 2010-06-26 | $109.80 | $61.64 | 51 |
| 2010-06-22 | $109.80 | $61.74 | 17 |
| 2010-06-21 | $109.80 | $61.40 | 17 |
| 2010-06-20 | $109.80 | $64.52 | 17 |
| 2010-06-18 | $109.80 | $64.55 | 17 |
| 2010-06-17 | $109.80 | $62.60 | 51 |
| 2010-06-15 | $109.80 | $65.08 | 51 |
| 2010-06-12 | $109.80 | $64.09 | 50 |
| 2010-06-09 | $109.80 | $64.91 | 51 |
| 2010-06-08 | $109.80 | $64.78 | 17 |
| 2010-06-06 | $109.80 | $66.30 | 17 |
| 2010-06-02 | $91.31 | $64.26 | 34 |
| 2010-05-29 | $90.19 | $59.77 | 17 |
| 2010-05-28 | $92.87 | $56.38 | 50 |
| 2010-05-27 | $77.95 | $55.96 | 50 |
| 2010-05-26 | $85.71 | $59.19 | 51 |
| 2010-05-25 | $85.71 | $57.69 | 85 |
| 2010-05-22 | $85.71 | $61.62 | 17 |
| 2010-05-20 | $85.71 | $61.35 | 34 |
| 2010-05-19 | $85.71 | $62.39 | 34 |
| 2010-05-18 | $85.71 | $62.69 | 17 |
| 2010-05-13 | $77.95 | $61.50 | 16 |
| 2010-05-12 | $80.71 | $61.29 | 47 |
| 2010-05-10 | $96.75 | $63.64 | 31 |
| 2010-05-06 | $80.58 | $54.88 | 78 |
| 2010-05-05 | $80.50 | $54.80 | 14 |
| 2010-05-04 | $80.50 | $56.22 | 29 |
| 2010-05-03 | $80.49 | $58.48 | 231 |
| 2010-05-01 | $80.49 | $58.07 | 16 |
| 2010-04-28 | $80.25 | $60.51 | 12 |
| 2010-04-22 | $79.86 | $58.77 | 27 |
| 2010-04-20 | $79.75 | $60.57 | 82 |
| 2010-04-19 | $79.55 | $60.59 | 28 |
| 2010-04-16 | $79.50 | $61.62 | 80 |
| 2010-04-15 | $79.33 | $65.65 | 26 |
| 2010-03-31 | $89.57 | $68.17 | 26 |
| 2010-03-24 | $85.72 | $66.51 | 25 |
| 2010-03-21 | $85.75 | $65.01 | 120 |
| 2010-03-12 | $92.75 | $66.14 | 26 |
| 2010-03-03 | $85.56 | $64.77 | 27 |
| 2010-03-01 | $85.56 | $64.12 | 28 |
| 2010-02-26 | $85.56 | $65.76 | 28 |
| 2010-02-23 | $85.56 | $64.82 | 28 |
| 2010-02-15 | $85.61 | $64.29 | 82 |
| 2010-02-14 | $85.61 | $66.28 | 28 |
| 2010-02-12 | $85.61 | $65.79 | 26 |
| 2010-02-09 | $85.56 | $66.02 | 52 |
| 2010-02-08 | $89.50 | $60.28 | 27 |
| 2010-02-04 | $89.50 | $69.11 | 25 |
| 2010-01-24 | $87.17 | $69.14 | 26 |
| 2010-01-11 | $88.59 | $72.73 | 101 |
| 2010-01-09 | $89.34 | $73.04 | 27 |
| 2010-01-08 | $89.34 | $72.76 | 27 |
| 2010-01-06 | $93.83 | $71.44 | 28 |
| 2010-01-03 | $91.66 | $70.35 | 27 |
| 2009-12-25 | $90.93 | $71.95 | 26 |
| 2009-12-18 | $87.79 | $69.78 | 164 |
| 2009-12-13 | $87.84 | $68.13 | 27 |
| 2009-12-10 | $93.66 | $67.53 | 29 |
| 2009-11-30 | $89.85 | $66.94 | 94 |
| 2009-11-09 | $114.71 | $63.53 | 28 |
| 2009-11-01 | $101.27 | $64.38 | 57 |
| 2009-10-27 | $95.76 | $66.69 | 55 |
| 2009-10-17 | $95.76 | $67.64 | 28 |
| 2009-10-16 | $95.76 | $67.76 | 28 |
| 2009-10-12 | $88.44 | $64.25 | 55 |
| 2009-09-29 | $82.12 | $68.70 | 26 |
| 2009-09-18 | $94.76 | $70.12 | 58 |
| 2009-09-16 | $94.76 | $69.50 | 28 |
| 2009-09-14 | $94.76 | $71.27 | 82 |
| 2009-09-10 | $94.76 | $71.78 | 55 |
| 2009-09-09 | $88.09 | $71.08 | 85 |
| 2009-09-07 | $88.09 | $71.66 | 27 |
| 2009-09-04 | $88.70 | $72.24 | 27 |
| 2009-08-30 | $88.70 | $72.68 | 30 |
| 2009-08-28 | $88.70 | $73.14 | 88 |
| 2009-08-27 | $88.70 | $73.51 | 119 |
| 2009-08-25 | $88.09 | $72.44 | 29 |
| 2009-07-21 | $87.76 | $67.16 | 30 |
| 2009-06-23 | $86.96 | $64.22 | 30 |
| 2009-05-11 | $93.60 | $65.45 | 30 |
| 2009-04-25 | $93.60 | $63.78 | 30 |
| 2009-04-16 | $78.06 | $61.89 | 29 |