| Date | Operating Statistics |
| Dec 01, 2011 | Dec 2011 Operating Statistics |
| Nov 01, 2011 | Nov 2011 Operating Statistics |
| Oct 01, 2011 | Oct 2011 Operating Statistics |
| Sep 01, 2011 | Sep 2011 Operating Statistics |
| Aug 01, 2011 | Aug 2011 Operating Statistics |
| Jul 01, 2011 | Jul 2011 Operating Statistics |
| Jun 01, 2011 | Jun 2011 Operating Statistics |
| May 01, 2011 | May 2011 Operating Statistics |
| Apr 01, 2011 | Apr 2011 Operating Statistics |
| Mar 01, 2011 | Mar 2011 Operating Statistics |
| Feb 01, 2011 | Feb 2011 Operating Statistics |
| Jan 01, 2011 | Jan 2011 Operating Statistics |
