
| 2024 | 0.34 | 0.65 | 96.16 | 52.5% |
| 2023 | 0.37 | 0.67 | 98.24 | 55.8% |
| 2022 | 0.47 | 0.74 | 108.9 | 63.6% |
| 2021 | 0.43 | 0.72 | 105.4 | 59.3% |
| 2020 | 0.37 | 0.66 | 95.55 | 56.4% |
| 2019 | 0.41 | 0.71 | 101.7 | 58.4% |
| 2018 | 0.43 | 0.71 | 101.6 | 60.1% |
| 2017 | 0.43 | 0.73 | 102.5 | 59.4% |
| 2016 | 0.41 | 0.71 | 100.1 | 57.6% |
| 2015 | 0.44 | 0.74 | 102.5 | 60.2% |
| 2014 | 0.42 | 0.71 | 97.6 | 59% |
| 2013 | 0.38 | 0.66 | 91.52 | 57.8% |
| 2012 | 0.43 | 0.72 | 98.18 | 60% |
| 2011 | 0.46 | 0.75 | 101.4 | 60.9% |
| 2010 | 0.39 | 0.68 | 91.9 | 56.5% |
| 2009 | 0.36 | 0.68 | 90.93 | 53.2% |
| 2008 | 0.38 | 0.76 | 100.5 | 50.1% |
| 2007 | 0.37 | 0.77 | 101.7 | 48.2% |
| 2006 | 0.41 | 0.8 | 104.8 | 51.5% |
| 2005 | 0.49 | 0.78 | 101.4 | 63.1% |
| 2004 | 0.38 | 0.75 | 97 | 50.7% |
| 2003 | 0.38 | 0.76 | 97.43 | 50% |
| 2002 | 0.41 | 0.75 | 95.93 | 55% |
| 2001 | 0.39 | 0.75 | 94.11 | 52.8% |
| 2000 | 0.39 | 0.74 | 92.26 | 52.2% |
| 1999 | 0.35 | 0.74 | 91.41 | 47.9% |
| 1998 | 0.4 | 0.8 | 98.58 | 49.9% |
| 1997 | 0.4 | 0.89 | 108.7 | 44.9% |
| 1996 | 0.43 | 0.98 | 118.1 | 43.6% |
| 1995 | 0.41 | 0.98 | 117.4 | 41.5% |
| 1994 | 0.37 | 0.9 | 106.4 | 41.3% |
| 1993 | 0.36 | 0.87 | 103.1 | 41.2% |
| 1992 | 0.34 | 0.9 | 105.7 | 37.9% |
| 1991 | 0.35 | 0.93 | 107 | 37.1% |
| 1990 | 0.38 | 1.19 | 134.6 | 31.9% |
| 1989 | 0.42 | 1.3 | 145.5 | 32.3% |
| 1988 | 0.42 | 1.42 | 157.8 | 29.8% |
| 1987 | 0.41 | 1.4 | 155.5 | 29.5% |
| 1986 | 0.4 | 1.41 | 156.9 | 28.2% |
| 1985 | 0.38 | 1.42 | 158.8 | 26.4% |
| 1984 | 0.39 | 1.38 | 154.3 | 28.2% |
| 1983 | 0.37 | 1.38 | 154.3 | 26.7% |
| 1982 | 0.35 | 1.35 | 151.5 | 25.9% |
| 1981 | 0.31 | 1.3 | 146.2 | 24.2% |
| 1980 | 0.29 | 1.31 | 148.2 | 22.2% |