| Date | Value | Change, % |
|---|---|---|
| 2017 | 2,386.0 | 9.61% |
| 2016 | 2,176.8 | -10.50% |
| 2015 | 2,432.2 | 22.24% |
| 2014 | 1,989.7 | -3.24% |
| 2013 | 2,056.3 | -1.44% |
| 2012 | 2,086.4 | 54.54% |
| 2011 | 1,350.0 | -25.97% |
| 2010 | 1,823.6 | 22.86% |
| 2009 | 1,484.3 | -34.97% |
| 2008 | 2,282.5 | 64.65% |
| 2007 | 1,386.3 | -26.31% |
| 2006 | 1,881.1 |