
| 2024 | 0.28 | 0.4 | 16.13 | 69.4% |
| 2023 | 0.28 | 0.39 | 16.74 | 70.5% |
| 2022 | 0.34 | 0.37 | 16.54 | 92.8% |
| 2021 | 0.33 | 0.4 | 18.43 | 83.3% |
| 2020 | 0.22 | 0.37 | 17.52 | 60.4% |
| 2019 | 0.22 | 0.4 | 19.85 | 53.2% |
| 2018 | 0.21 | 0.45 | 22.9 | 46% |
| 2017 | 0.19 | 0.4 | 21 | 47.7% |
| 2016 | 0.19 | 0.4 | 20.85 | 48.3% |
| 2015 | 0.21 | 0.41 | 21.31 | 51.9% |
| 2014 | 0.26 | 0.45 | 22.37 | 56.4% |
| 2013 | 0.33 | 0.51 | 23.46 | 65% |
| 2012 | 0.62 | 0.7 | 30.62 | 88.5% |
| 2011 | 1.07 | 0.91 | 39.63 | 118.1% |
| 2010 | 1.18 | 1.01 | 44.88 | 117.1% |
| 2009 | 1.12 | 0.98 | 44.55 | 114.9% |
| 2008 | 1.12 | 1.04 | 48.09 | 107.7% |
| 2007 | 1.12 | 1.02 | 48.88 | 109.6% |
| 2006 | 1.17 | 0.99 | 50.2 | 118.5% |
| 2005 | 1.22 | 0.94 | 50.07 | 129.9% |
| 2004 | 1.34 | 0.83 | 45.35 | 161.6% |
| 2003 | 1.69 | 0.75 | 42.12 | 224.7% |
| 2002 | 1.75 | 0.78 | 44.56 | 224.2% |
| 2001 | 1.56 | 0.71 | 41.7 | 218.8% |
| 2000 | 1.49 | 0.72 | 43.36 | 206.5% |
| 1999 | 1.54 | 0.75 | 46.35 | 204.4% |
| 1998 | 1.52 | 0.73 | 46.17 | 208.5% |
| 1997 | 1.48 | 0.68 | 43.97 | 218.5% |
| 1996 | 1.49 | 0.64 | 42.4 | 233.4% |
| 1995 | 1.5 | 0.59 | 40.34 | 254.1% |
| 1994 | 1.46 | 0.61 | 43.16 | 238.1% |
| 1993 | 1.42 | 0.58 | 41.73 | 247% |
| 1992 | 1.32 | 0.52 | 38.6 | 256.2% |
| 1991 | 1.19 | 0.5 | 38.55 | 237.3% |
| 1990 | 0.99 | 0.54 | 42.99 | 183.9% |
| 1989 | 0.78 | 0.46 | 38.09 | 169.1% |
| 1988 | 0.65 | 0.43 | 36.73 | 149.2% |
| 1987 | 0.57 | 0.41 | 36.11 | 137.6% |
| 1986 | 0.42 | 0.37 | 33.24 | 114.2% |
| 1985 | 0.4 | 0.36 | 34.07 | 111.9% |
| 1984 | 0.42 | 0.35 | 33.72 | 121.4% |
| 1983 | 0.02 | 0.31 | 31.41 | 5.8% |
| 1982 | 0.02 | 0.27 | 28.59 | 6.8% |
| 1981 | 0.02 | 0.27 | 29.22 | 6.4% |
| 1980 | 0.03 | 0.26 | 28.76 | 9.7% |