| Years | Return |
|---|---|
| 1997 | 10.6% |
| 2012 | 0% |
| 2013 | 15.1% |
| 2014 | 1.3% |
| 2015 | -4% |
| 2016 | -14.5% |
| 2017 | 15.8% |
| 2018 | -15.3% |
| 2019 | 13.5% |
| 2020 | 23.5% |
| 2000 | -73.4% |
| 2001 | -12.2% |
| 2002 | -16.1% |
| 2003 | 28.1% |
| 2004 | 31.8% |
| 2005 | 34.7% |
| 2006 | 20.1% |
| 2007 | 0% |
| 2008 | 0% |
| 2009 | 22.6% |
| 2010 | -31.2% |
| 2011 | -22.3% |
| 2021 | 12.4% |
| 2023 | 19% |
| 2024 | -0.2% |
| 2022 | -25.9% |