History price
| Date | Open price | Highest price | Lowest price | Close price | Trade volume |
|---|---|---|---|---|---|
| 2011-08-31 | 18.02 | 18.52 | 18.02 | 18.52 | 325,790 |
| 2011-08-30 | 17.72 | 17.72 | 17.62 | 17.72 | 185,350 |
| 2011-08-29 | 16.51 | 16.91 | 16.41 | 16.91 | 138,050 |
| 2011-08-26 | 16.11 | 16.31 | 16.11 | 16.11 | 81,840 |
| 2011-08-25 | 15.71 | 16.11 | 15.71 | 16.11 | 98,240 |
| 2011-08-24 | 16.61 | 16.61 | 15.71 | 15.71 | 44,290 |
| 2011-08-23 | 16.21 | 16.21 | 15.81 | 16.11 | 167,810 |
| 2011-08-22 | 15.5 | 15.5 | 15.5 | 15.5 | 31,640 |
| 2011-08-19 | 18.12 | 18.52 | 17.92 | 18.02 | 177,460 |
| 2011-08-18 | 18.93 | 19.13 | 18.42 | 18.62 | 137,780 |
| 2011-08-17 | 17.42 | 18.22 | 17.42 | 18.22 | 188,300 |
| 2011-08-16 | 17.21 | 17.62 | 17.11 | 17.42 | 161,430 |
| 2011-08-15 | 17.11 | 17.21 | 17.01 | 17.21 | 73,710 |
| 2011-08-12 | 16.61 | 17.11 | 16.61 | 17.01 | 80,470 |
| 2011-08-11 | 17.01 | 17.01 | 16.51 | 16.61 | 31,680 |
| 2011-08-10 | 17.11 | 17.11 | 16.51 | 16.71 | 42,980 |
| 2011-08-09 | 16.71 | 16.71 | 16.21 | 16.61 | 185,080 |
| 2011-08-08 | 17.11 | 17.21 | 16.91 | 17.01 | 82,700 |
| 2011-08-05 | 17.42 | 17.52 | 17.11 | 17.42 | 56,900 |
| 2011-08-04 | 16.81 | 17.42 | 16.81 | 17.42 | 24,050 |