
| 2024 | 0.95 | 0.21 | 6.01 | 454.3% |
| 2023 | 0.72 | 0.19 | 5.75 | 372.3% |
| 2022 | 0.49 | 0.19 | 5.87 | 257.2% |
| 2021 | 0.53 | 0.18 | 5.65 | 298.4% |
| 2020 | 0.45 | 0.16 | 5.04 | 291.4% |
| 2019 | 0.54 | 0.17 | 5.63 | 322.8% |
| 2018 | 0.69 | 0.16 | 5.55 | 428.6% |
| 2017 | 0.67 | 0.21 | 7.49 | 317.8% |
| 2016 | 0.48 | 0.2 | 7.29 | 240.9% |
| 2015 | 0.46 | 0.18 | 6.79 | 257.3% |
| 2014 | 0.45 | 0.17 | 6.5 | 268.2% |
| 2013 | 0.42 | 0.15 | 6.03 | 280.3% |
| 2012 | 0.37 | 0.13 | 5.47 | 276.9% |
| 2011 | 0.22 | 0.1 | 4.39 | 215.6% |
| 2010 | 0.18 | 0.08 | 3.52 | 224% |
| 2009 | 0.16 | 0.08 | 3.54 | 206.5% |
| 2008 | 0.17 | 0.08 | 3.46 | 221.6% |
| 2007 | 0.15 | 0.08 | 3.73 | 191.9% |
| 2006 | 0.15 | 0.07 | 3.34 | 210.5% |
| 2005 | 0.13 | 0.06 | 3.15 | 198.9% |
| 2004 | 0.08 | 0.06 | 3.07 | 136.6% |
| 2003 | 0.04 | 0.06 | 3.02 | 69.2% |
| 2002 | 0.05 | 0.04 | 2.34 | 103.2% |
| 2001 | 0.04 | 0.05 | 2.52 | 92.1% |
| 2000 | 0.04 | 0.03 | 1.92 | 101.8% |
| 1999 | 0.03 | 0.03 | 1.46 | 110.8% |
| 1998 | 0.0078 | 0.02 | 1.27 | 35.6% |
| 1997 | 0.0038 | 0.02 | 1.14 | 20% |
| 1996 | 0.0021 | 0.02 | 1.13 | 11.2% |
| 1995 | 0.0013 | 0.02 | 1.14 | 7% |
| 1994 | 0.0012 | 0.02 | 1.14 | 7.2% |
| 1993 | 0.0012 | 0.02 | 1.28 | 6.5% |
| 1992 | 0.0011 | 0.02 | 1.22 | 6.6% |
| 1991 | 0.0011 | 0.02 | 1.26 | 6.5% |
| 1990 | 0.00096 | 0.02 | 1.27 | 5.7% |
| 1989 | 0.00017 | 0.02 | 1.39 | 0.95% |
| 1988 | 0.00017 | 0.02 | 1.74 | 0.75% |
| 1987 | 0.000082 | 0.02 | 1.2 | 0.53% |
| 1986 | 0.00013 | 0.02 | 1.19 | 0.86% |
| 1985 | 0.00051 | 0.03 | 2.24 | 1.8% |
| 1984 | 0.0019 | 0.03 | 2.13 | 7.2% |
| 1983 | 0.02 | 0.04 | 3.71 | 38.1% |
| 1982 | 0.01 | 0.04 | 3.07 | 27.8% |
| 1981 | 0.01 | 0.03 | 3 | 32.6% |
| 1980 | 0.05 | 0.07 | 6.44 | 62.7% |