| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Accumulated | |
| 2005 | 0.54 | 2.60 | -2.15 | 0.65 | 1.55 | -2.44 | -0.97 | -1.00 | 3.91 | -2.19 | 3.54 | 1.71 | 5.60 | |
| 2006 | 10.64 | 8.79 | -3.77 | 7.99 | -9.86 | 2.28 | 2.97 | 4.56 | -0.03 | 4.12 | 2.37 | 5.35 | 39.37 | |
| 2007 | 0.86 | 1.21 | 2.43 | 6.28 | 7.12 | -1.17 | 1.13 | -2.48 | 4.88 | 8.18 | -3.29 | -2.25 | 24.44 | |
| 2008 | -2.38 | 0.07 | -10.80 | 0.33 | 3.80 | -4.01 | -1.42 | -0.05 | 0.23 | 1.12 | 0.35 | 2.56 | -10.47 | |
| 2009 | 0.67 | 0.43 | 2.65 | 1.94 | 4.30 | -1.87 | 2.00 | 0.75 | 2.53 | 2.18 | -0.91 | 15.51 | ||
| Accumulated (since 12/31/2004) | 89.40 | |||||||||||||
| Last 12 Months | 18.46 | |||||||||||||