| Years | Return |
|---|---|
| 1985 | 142.8% |
| 1986 | 20.7% |
| 1987 | 5.8% |
| 1988 | -47.3% |
| 1989 | -10.3% |
| 1990 | -80% |
| 1991 | -12.5% |
| 1992 | 6.1% |
| 1993 | 415.4% |
| 1994 | 16.4% |
| 1995 | 44.9% |
| 1996 | 17.7% |
| 1997 | 123.3% |
| 2000 | -49.2% |
| 2001 | 55.6% |
| 2002 | 24.3% |
| 2003 | -8.4% |
| 2004 | -21.3% |
| 2005 | -39.5% |
| 2006 | -56.7% |
| 2007 | -71.8% |
| 2008 | -97.2% |
| 2009 | -59.1% |
| 2010 | 102.9% |
| 2011 | -65.1% |
| 2012 | -92.3% |
| 2013 | -34.7% |
| 2014 | 17906.6% |
| 2015 | -3% |
| 2016 | 16.5% |
| 2017 | -38.3% |
| 2018 | -2% |
| 2019 | 11.1% |
| 2020 | 3.5% |
| 2021 | -3% |
| 2022 | -18.8% |
