| Date | Value |
|---|---|
| 2011-08-17 | 68,807,002 |
| 2011-08-16 | 63,825,686 |
| 2011-08-11 | 61,352,592 |
| 2011-08-01 | 58,868,856 |
| 2011-07-04 | 52,347,883 |
| 2011-06-25 | 40,357,104 |
| 2011-06-21 | 35,446,609 |
| 2011-06-13 | 33,012,474 |
| 2011-05-31 | 28,943,826 |
| 2011-05-24 | 18,923,893 |
| 2011-05-06 | 16,509,101 |
| 2011-03-30 | 11,691,694 |
| 2011-03-07 | 9,139,545 |
| 2011-03-04 | 4,268,979 |
| 2011-01-19 | 2,496,942 |