September 2011
| Date |
Price/lb. |
Roll Average |
| 9/1/2011 |
$4.1425 |
|
| 9/2/2011 |
$4.1070 |
$4.1248 |
| 9/6/2011 |
$4.3200 |
$4.3710 |
| 9/7/2011 |
$4.1155 |
$4.1011 |
| 9/8/2011 |
$4.1280 |
$4.1065 |
| 9/9/2011 |
$3.9875 |
$4.0867 |
| 9/12/2011 |
$3.9505 |
$4.0672 |
| 9/13/2011 |
$3.9560 |
$4.0533 |
| 9/14/2011 |
$3.8850 |
$4.0346 |
| 9/15/2011 |
$3.9450 |
$4.0257 |
| 9/16/2011 |
$3.9200 |
$4.0160 |
| 9/19/2011 |
$3.7715 |
$3.9957 |
| 9/20/2011 |
$3.7165 |
$3.9742 |
| 9/21/2011 |
$3.7535 |
$3.9584 |
| 9/22/2011 |
$3.4805 |
$3.9266 |
| 9/23/2011 |
$3.2720 |
$3.8857 |
| 9/26/2011 |
$3.2750 |
$3.8497 |
| 9/27/2011 |
$3.4295 |
$3.8264 |
| 9/28/2011 |
$3.2360 |
$3.7953 |
| 9/29/2011 |
$3.2370 |
$3.7674 |
| 9/30/2011 |
$3.1450 |
$3.7378 |
