
| 2024 | 0 | 0 | 0 | — |
| 2023 | 0 | 0 | 0 | — |
| 2022 | 0 | 0 | 0 | — |
| 2021 | 0 | 0 | 0 | — |
| 2020 | 0 | 0 | 0 | — |
| 2019 | 0 | 0 | 0 | — |
| 2018 | 0 | 0 | 0 | — |
| 2017 | 0 | 0 | 0 | — |
| 2016 | 0 | 0 | 0 | — |
| 2015 | 0 | 0 | 0 | — |
| 2014 | 0 | 0 | 0 | — |
| 2013 | 0 | 0 | 0 | — |
| 2012 | 0 | 0 | 0 | — |
| 2011 | 0 | 0.04 | 44.27 | 0% |
| 2010 | 0.0048 | 0.04 | 51.19 | 11.1% |
| 2009 | 0.0046 | 0.04 | 47.4 | 11.5% |
| 2008 | 0.0048 | 0.04 | 46.25 | 12.5% |
| 2007 | 0.0049 | 0.03 | 42.6 | 14.1% |
| 2006 | 0.0047 | 0.04 | 44.76 | 13% |
| 2005 | 0.0046 | 0.04 | 48.01 | 12% |
| 2004 | 0.0049 | 0.04 | 50.99 | 12.1% |
| 2003 | 0.0043 | 0.04 | 45.76 | 11.9% |
| 2002 | 0.0044 | 0.04 | 45.79 | 12.3% |
| 2001 | 0.0045 | 0.04 | 45.47 | 12.8% |
| 2000 | 0.0046 | 0.04 | 45.92 | 13% |
| 1999 | 0.0019 | 0.04 | 49.06 | 5.1% |
| 1998 | 0.0019 | 0.04 | 49.72 | 5.1% |
| 1997 | 0.0018 | 0.03 | 39.77 | 6.3% |
| 1996 | 0.0017 | 0.03 | 40.31 | 5.9% |
| 1995 | 0.0017 | 0.03 | 40.81 | 5.8% |
| 1994 | 0.0017 | 0.03 | 42.02 | 5.7% |
| 1993 | 0.0017 | 0.03 | 41.21 | 5.9% |
| 1992 | 0.0017 | 0.02 | 33.53 | 7.4% |
| 1991 | 0.0016 | 0.02 | 32.96 | 7.1% |
| 1990 | 0.0019 | 0.02 | 29.32 | 9.7% |
| 1989 | 0.0017 | 0.02 | 28.36 | 9.2% |
| 1988 | 0.0014 | 0.02 | 26.38 | 8.6% |
| 1987 | 0.0018 | 0.01 | 23.4 | 12.3% |
| 1986 | 0.0017 | 0.01 | 21.22 | 13.1% |
| 1985 | 0.0016 | 0.01 | 22.14 | 12.4% |
| 1984 | 0.0014 | 0.01 | 22.48 | 10.4% |
| 1983 | 0.0015 | 0.01 | 20.93 | 12% |
| 1982 | 0.0014 | 0.01 | 18.82 | 13.4% |
| 1981 | 0.0013 | 0.0098 | 17.38 | 12.9% |
| 1980 | 0.001 | 0.0095 | 17.25 | 10.8% |