
| 2024 | 0.04 | 0.32 | 5.72 | 13.2% |
| 2023 | 0.04 | 0.3 | 5.49 | 13.2% |
| 2022 | 0.04 | 0.3 | 5.49 | 13.5% |
| 2021 | 0.04 | 0.3 | 5.58 | 13.2% |
| 2020 | 0.04 | 0.28 | 5.34 | 13.8% |
| 2019 | 0.04 | 0.29 | 5.73 | 12.2% |
| 2018 | 0.03 | 0.28 | 5.61 | 12.1% |
| 2017 | 0.03 | 0.29 | 5.89 | 11.7% |
| 2016 | 0.03 | 0.29 | 5.95 | 11.7% |
| 2015 | 0.03 | 0.27 | 5.7 | 12.6% |
| 2014 | 0.03 | 0.23 | 5.02 | 12.1% |
| 2013 | 0.03 | 0.22 | 4.86 | 11.6% |
| 2012 | 0.03 | 0.2 | 4.62 | 12.4% |
| 2011 | 0.02 | 0.21 | 5 | 10.3% |
| 2010 | 0.02 | 0.21 | 4.94 | 10.6% |
| 2009 | 0.02 | 0.19 | 4.77 | 8.8% |
| 2008 | 0.02 | 0.17 | 4.4 | 10.6% |
| 2007 | 0.02 | 0.17 | 4.47 | 11.7% |
| 2006 | 0.02 | 0.17 | 4.61 | 11.3% |
| 2005 | 0.02 | 0.15 | 4.3 | 11.9% |
| 2004 | 0.02 | 0.14 | 4.06 | 12.7% |
| 2003 | 0.02 | 0.13 | 3.79 | 14.4% |
| 2002 | 0.02 | 0.14 | 4.26 | 12% |
| 2001 | 0.0098 | 0.14 | 4.3 | 7.2% |
| 2000 | 0.0059 | 0.14 | 4.61 | 4.2% |
| 1999 | 0.01 | 0.12 | 4.1 | 8.8% |
| 1998 | 0.01 | 0.12 | 4.29 | 11% |
| 1997 | 0.01 | 0.11 | 3.93 | 12.2% |
| 1996 | 0.01 | 0.12 | 4.37 | 11.7% |
| 1995 | 0.01 | 0.11 | 4.3 | 11.6% |
| 1994 | 0.01 | 0.11 | 4.16 | 11.6% |
| 1993 | 0.01 | 0.11 | 4.2 | 12.6% |
| 1992 | 0.01 | 0.1 | 4.22 | 12.2% |
| 1991 | 0.01 | 0.09 | 3.96 | 13.4% |
| 1990 | 0.01 | 0.1 | 4.52 | 11.4% |
| 1989 | 0.01 | 0.1 | 4.65 | 11.1% |
| 1988 | 0.01 | 0.1 | 4.46 | 11.3% |
| 1987 | 0.0091 | 0.08 | 4.1 | 10.8% |
| 1986 | 0.0089 | 0.09 | 4.71 | 9.5% |
| 1985 | 0.0084 | 0.09 | 4.66 | 9.4% |
| 1984 | 0.0074 | 0.09 | 4.66 | 8.6% |
| 1983 | 0.0074 | 0.09 | 4.86 | 8.5% |
| 1982 | 0.0065 | 0.09 | 5.27 | 7.2% |
| 1981 | 0.0062 | 0.09 | 5.5 | 6.8% |
| 1980 | 0.005 | 0.09 | 5.81 | 5.3% |