
| 2024 | 0.11 | 0.22 | 4.37 | 50.1% |
| 2023 | 0.17 | 0.23 | 4.6 | 72.5% |
| 2022 | 0.16 | 0.31 | 6.33 | 51.9% |
| 2021 | 0.15 | 0.28 | 5.81 | 54.6% |
| 2020 | 0.16 | 0.27 | 5.85 | 57.3% |
| 2019 | 0.17 | 0.33 | 7.22 | 50.3% |
| 2018 | 0.16 | 0.33 | 7.37 | 48.8% |
| 2017 | 0.22 | 0.32 | 7.45 | 70.1% |
| 2016 | 0.22 | 0.32 | 7.66 | 71.2% |
| 2015 | 0.23 | 0.26 | 6.54 | 88.4% |
| 2014 | 0.24 | 0.25 | 6.39 | 98% |
| 2013 | 0.28 | 0.24 | 6.44 | 114.5% |
| 2012 | 0.2 | 0.24 | 6.48 | 81.8% |
| 2011 | 0.86 | 0.25 | 6.89 | 347.3% |
| 2010 | 0.92 | 0.26 | 7.37 | 354.4% |
| 2009 | 0.91 | 0.24 | 7.07 | 372% |
| 2008 | 0.9 | 0.24 | 7.03 | 378.8% |
| 2007 | 0.89 | 0.22 | 6.6 | 411.6% |
| 2006 | 0.65 | 0.2 | 6.36 | 317.4% |
| 2005 | 0.57 | 0.17 | 5.44 | 336.9% |
| 2004 | 0.57 | 0.15 | 4.79 | 387.1% |
| 2003 | 0.5 | 0.13 | 4.42 | 376% |
| 2002 | 0.45 | 0.13 | 4.32 | 358% |
| 2001 | 0.39 | 0.11 | 3.69 | 371.5% |
| 2000 | 0.33 | 0.1 | 3.53 | 340% |
| 1999 | 0.13 | 0.07 | 2.41 | 204% |
| 1998 | 0.02 | 0.06 | 2.31 | 36.1% |
| 1997 | 0.01 | 0.06 | 2.36 | 22.2% |
| 1996 | 0.0079 | 0.06 | 2.35 | 13.4% |
| 1995 | 0.0033 | 0.06 | 2.39 | 5.6% |
| 1994 | 0.0038 | 0.06 | 2.64 | 6% |
| 1993 | 0.0037 | 0.07 | 2.98 | 5.3% |
| 1992 | 0.0037 | 0.07 | 3.23 | 5% |
| 1991 | 0.0035 | 0.08 | 3.61 | 4.3% |
| 1990 | 0.0032 | 0.06 | 2.59 | 5.7% |
| 1989 | 0.0032 | 0.06 | 2.93 | 5% |
| 1988 | 0.0031 | 0.07 | 3.09 | 4.8% |
| 1987 | 0.0031 | 0.06 | 2.89 | 5.2% |
| 1986 | 0.0031 | 0.06 | 3.07 | 5% |
| 1985 | 0.0031 | 0.06 | 2.81 | 5.6% |
| 1984 | 0.0026 | 0.05 | 2.52 | 5.2% |
| 1983 | 0.0026 | 0.05 | 2.79 | 4.9% |
| 1982 | 0.0026 | 0.06 | 3 | 4.7% |
| 1981 | 0.0025 | 0.05 | 2.88 | 4.9% |
| 1980 | 0.0017 | 0.05 | 2.84 | 3.5% |