
| 2024 | 2.02 | 5.44 | 75.97 | 37.1% |
| 2023 | 1.96 | 5.31 | 74.03 | 36.9% |
| 2022 | 2.01 | 5.14 | 71.67 | 39.2% |
| 2021 | 2.3 | 5.12 | 71.45 | 44.9% |
| 2020 | 2.4 | 5.13 | 71.66 | 46.8% |
| 2019 | 2.65 | 5.51 | 77.07 | 48.1% |
| 2018 | 2.61 | 5.42 | 75.88 | 48.2% |
| 2017 | 2.66 | 5.35 | 75.14 | 49.7% |
| 2016 | 2.71 | 5.24 | 73.88 | 51.8% |
| 2015 | 2.59 | 5.11 | 72.4 | 50.7% |
| 2014 | 2.66 | 5.07 | 72.26 | 52.5% |
| 2013 | 2.65 | 5.05 | 72.29 | 52.4% |
| 2012 | 2.59 | 4.76 | 68.56 | 54.5% |
| 2011 | 2.39 | 4.48 | 64.89 | 53.5% |
| 2010 | 2.3 | 4.38 | 63.86 | 52.6% |
| 2009 | 2.09 | 4.02 | 59.02 | 52.1% |
| 2008 | 1.99 | 3.87 | 57.2 | 51.4% |
| 2007 | 1.83 | 3.83 | 57.08 | 47.9% |
| 2006 | 1.76 | 3.7 | 55.66 | 47.6% |
| 2005 | 1.68 | 3.65 | 55.23 | 46.1% |
| 2004 | 1.51 | 3.54 | 54.11 | 42.6% |
| 2003 | 1.47 | 3.27 | 50.35 | 45% |
| 2002 | 1.38 | 2.99 | 46.48 | 46.3% |
| 2001 | 1.29 | 2.68 | 42.07 | 48.3% |
| 2000 | 1.25 | 2.53 | 40.16 | 49.3% |
| 1999 | 1.14 | 2.43 | 38.93 | 46.8% |
| 1998 | 1.08 | 2.36 | 38.38 | 45.8% |
| 1997 | 1.08 | 2.5 | 41.17 | 43.2% |
| 1996 | 0.95 | 2.33 | 38.93 | 40.8% |
| 1995 | 0.79 | 2.06 | 34.94 | 38.5% |
| 1994 | 0.75 | 1.84 | 31.51 | 41.1% |
| 1993 | 0.63 | 1.65 | 28.76 | 38.2% |
| 1992 | 0.57 | 1.43 | 25.38 | 39.5% |
| 1991 | 0.53 | 1.33 | 23.9 | 39.9% |
| 1990 | 0.47 | 1.21 | 22.13 | 38.8% |
| 1989 | 0.4 | 1.02 | 19.02 | 39.4% |
| 1988 | 0.4 | 0.88 | 16.56 | 45.2% |
| 1987 | 0.32 | 0.77 | 14.75 | 41.4% |
| 1986 | 0.29 | 0.67 | 13.18 | 43.7% |
| 1985 | 0.3 | 0.65 | 12.97 | 45.7% |
| 1984 | 0.16 | 0.6 | 12.1 | 27.3% |
| 1983 | 0.09 | 0.54 | 11.08 | 17.1% |
| 1982 | 0.08 | 0.5 | 10.49 | 16.8% |
| 1981 | 0.07 | 0.51 | 11.01 | 13.3% |
| 1980 | 0.02 | 0.49 | 10.66 | 4.1% |