
| 2024 | 0.49 | 0.11 | 10.56 | 440.2% |
| 2023 | 0.5 | 0.1 | 9.81 | 488.2% |
| 2022 | 0.52 | 0.12 | 11.73 | 431.5% |
| 2021 | 0.5 | 0.09 | 9.41 | 528.4% |
| 2020 | 0.52 | 0.1 | 9.78 | 545.4% |
| 2019 | 0.5 | 0.1 | 10.74 | 486.2% |
| 2018 | 0.45 | 0.1 | 11.09 | 430.7% |
| 2017 | 0.52 | 0.09 | 9.72 | 584.4% |
| 2016 | 0.53 | 0.09 | 10.19 | 576.1% |
| 2015 | 0.48 | 0.09 | 9.77 | 567.6% |
| 2014 | 0.28 | 0.07 | 8.51 | 388.1% |
| 2013 | 0.07 | 0.07 | 8.21 | 104.5% |
| 2012 | 0.06 | 0.07 | 8.22 | 97% |
| 2011 | 0.07 | 0.07 | 8.77 | 98.7% |
| 2010 | 0.07 | 0.07 | 8.66 | 108% |
| 2009 | 0.09 | 0.07 | 9.96 | 120.5% |
| 2008 | 0.09 | 0.07 | 9.23 | 141.7% |
| 2007 | 0.09 | 0.08 | 10.84 | 116.6% |
| 2006 | 0.11 | 0.07 | 10.38 | 154.7% |
| 2005 | 0.12 | 0.07 | 10.39 | 173.2% |
| 2004 | 0.09 | 0.07 | 11.4 | 131.5% |
| 2003 | 0.11 | 0.06 | 10.37 | 170.6% |
| 2002 | 0.11 | 0.06 | 9.36 | 191.2% |
| 2001 | 0.13 | 0.05 | 9.17 | 247.4% |
| 2000 | 0.14 | 0.05 | 8.17 | 306.2% |
| 1999 | 0.19 | 0.04 | 7.31 | 480.9% |
| 1998 | 0.17 | 0.04 | 7.54 | 432.8% |
| 1997 | 0.17 | 0.04 | 7.95 | 429.1% |
| 1996 | 0.23 | 0.04 | 8.4 | 559.6% |
| 1995 | 0.22 | 0.04 | 8.39 | 561.5% |
| 1994 | 0.28 | 0.04 | 7.93 | 778.3% |
| 1993 | 0.26 | 0.04 | 8.63 | 705% |
| 1992 | 0.11 | 0.04 | 8.79 | 306.1% |
| 1991 | 0.0019 | 0.03 | 8.59 | 5.5% |
| 1990 | 0.0016 | 0.03 | 8.98 | 4.4% |
| 1989 | 0.0015 | 0.03 | 9.09 | 4.4% |
| 1988 | 0.0015 | 0.03 | 9.08 | 4.5% |
| 1987 | 0.0015 | 0.04 | 9.9 | 4.1% |
| 1986 | 0.0015 | 0.03 | 9.11 | 4.8% |
| 1985 | 0.0014 | 0.03 | 9.03 | 4.5% |
| 1984 | 0.0014 | 0.03 | 9.24 | 4.4% |
| 1983 | 0.0013 | 0.03 | 8.1 | 4.8% |
| 1982 | 0.001 | 0.03 | 8.19 | 3.8% |
| 1981 | 0.001 | 0.03 | 8.37 | 3.9% |
| 1980 | 0.0011 | 0.03 | 8.57 | 4% |