| 4/1/08 | 257 |
| 5/1/08 | 252.6 |
| 5/15/08 | 248 |
| 6/29/08 | 235.8 |
| 6/30/08 | 235 |
| 7/2/08 | 235 |
| 7/3/08 | 231 |
| 10/12/08 | 222.2 |
| 10/13/08 | 221.8 |
| 10/14/08 | 219.8 |
| 10/18/08 | 219.2 |
| 10/24/08 | 218 |
| 10/25/08 | 217.8 |
| 10/29/08 | 216.8 |
| 11/4/08 | 216.4 |
| 11/7/08 | 216.2 |
| 11/8/08 | 215.6 |
| 11/9/08 | 215.2 |
| 11/13/08 | 213.6 |
| 11/28/08 | 213 |
| 12/9/08 | 212.8 |
| 12/10/08 | 212.2 |
| 12/11/08 | 211 |
| 12/25/08 | 209.6 |
| 1/25/09 | 213 |
| 2/22/09 | 211 |
| 2/25/09 | 211.8 |
| 3/5/09 | 210.8 |
| 3/6/09 | 208.8 |
| 3/7/09 | 208.2 |
| 3/11/09 | 208 |
| 3/14/09 | 207.6 |
| 3/19/09 | 206.6 |
| 3/20/09 | 205.8 |
| 4/15/09 | 205.6 |
| 4/18/09 | 204.6 |
| 5/19/09 | 203.6 |
| 6/10/09 | 202 |
| 4/20/10 | 198 |
| 5/8/10 | 195 |
| 5/31/10 | 193 |
| 6/1/10 | 193 |
| 6/9/10 | 192 |
| 7/26/10 | 190 |
| 8/16/10 | 189 |
| 8/23/10 | 188 |
| 9/15/10 | 187 |
| 9/24/10 | 186 |
| 1/3/11 | 193 |
| 2/20/11 | 198 |
| 2/25/11 | 196 |
| 3/8/11
3/14/11 |
192
190 |


