
| 2024 | 0.28 | 0.4 | 17.02 | 69.4% |
| 2023 | 0.28 | 0.39 | 17.66 | 70.5% |
| 2022 | 0.34 | 0.37 | 17.45 | 92.8% |
| 2021 | 0.33 | 0.4 | 19.44 | 83.3% |
| 2020 | 0.22 | 0.37 | 18.48 | 60.4% |
| 2019 | 0.22 | 0.4 | 20.94 | 53.2% |
| 2018 | 0.21 | 0.45 | 24.16 | 46% |
| 2017 | 0.19 | 0.4 | 22.16 | 47.7% |
| 2016 | 0.19 | 0.4 | 22 | 48.3% |
| 2015 | 0.21 | 0.41 | 22.48 | 51.9% |
| 2014 | 0.26 | 0.45 | 23.6 | 56.4% |
| 2013 | 0.33 | 0.51 | 24.75 | 65% |
| 2012 | 0.62 | 0.7 | 32.3 | 88.5% |
| 2011 | 1.07 | 0.91 | 41.82 | 118.1% |
| 2010 | 1.18 | 1.01 | 47.36 | 117.1% |
| 2009 | 1.12 | 0.98 | 47 | 114.9% |
| 2008 | 1.12 | 1.04 | 50.74 | 107.7% |
| 2007 | 1.12 | 1.02 | 51.57 | 109.6% |
| 2006 | 1.17 | 0.99 | 52.96 | 118.5% |
| 2005 | 1.22 | 0.94 | 52.83 | 129.9% |
| 2004 | 1.34 | 0.83 | 47.84 | 161.6% |
| 2003 | 1.69 | 0.75 | 44.44 | 224.7% |
| 2002 | 1.75 | 0.78 | 47.02 | 224.2% |
| 2001 | 1.56 | 0.71 | 44 | 218.8% |
| 2000 | 1.49 | 0.72 | 45.75 | 206.5% |
| 1999 | 1.54 | 0.75 | 48.9 | 204.4% |
| 1998 | 1.52 | 0.73 | 48.71 | 208.5% |
| 1997 | 1.48 | 0.68 | 46.39 | 218.5% |
| 1996 | 1.49 | 0.64 | 44.74 | 233.4% |
| 1995 | 1.5 | 0.59 | 42.56 | 254.1% |
| 1994 | 1.46 | 0.61 | 45.54 | 238.1% |
| 1993 | 1.42 | 0.58 | 44.02 | 247% |
| 1992 | 1.32 | 0.52 | 40.73 | 256.2% |
| 1991 | 1.19 | 0.5 | 40.67 | 237.3% |
| 1990 | 0.99 | 0.54 | 45.36 | 183.9% |
| 1989 | 0.78 | 0.46 | 40.19 | 169.1% |
| 1988 | 0.65 | 0.43 | 38.76 | 149.2% |
| 1987 | 0.57 | 0.41 | 38.1 | 137.6% |
| 1986 | 0.42 | 0.37 | 35.07 | 114.2% |
| 1985 | 0.4 | 0.36 | 35.95 | 111.9% |
| 1984 | 0.42 | 0.35 | 35.57 | 121.4% |
| 1983 | 0.02 | 0.31 | 33.14 | 5.8% |
| 1982 | 0.02 | 0.27 | 30.17 | 6.8% |
| 1981 | 0.02 | 0.27 | 30.83 | 6.4% |
| 1980 | 0.03 | 0.26 | 30.35 | 9.7% |