
| 2024 | 7.79 | 3.63 | 176.5 | 214.3% |
| 2023 | 7.96 | 3.56 | 175.2 | 223.7% |
| 2022 | 7.7 | 3.48 | 173.6 | 221.4% |
| 2021 | 7.31 | 3.11 | 157.4 | 235.4% |
| 2020 | 7.44 | 3.22 | 165.5 | 230.9% |
| 2019 | 7.77 | 3.15 | 164 | 246.5% |
| 2018 | 7.86 | 3.2 | 169.1 | 245.4% |
| 2017 | 7.66 | 3.28 | 175.8 | 233.6% |
| 2016 | 7.29 | 3.32 | 180.8 | 219.7% |
| 2015 | 7.49 | 3.27 | 181 | 228.9% |
| 2014 | 7.51 | 3.25 | 182.7 | 230.8% |
| 2013 | 7.5 | 3.42 | 194.9 | 219% |
| 2012 | 7.41 | 3.4 | 196.5 | 217.9% |
| 2011 | 7.35 | 3.44 | 201.8 | 213.4% |
| 2010 | 7.08 | 3.14 | 186.7 | 225.2% |
| 2009 | 6.64 | 2.94 | 176.9 | 226% |
| 2008 | 6.41 | 3.62 | 220.4 | 177% |
| 2007 | 6.3 | 3.17 | 194.9 | 198.7% |
| 2006 | 6.01 | 2.67 | 165.8 | 225.1% |
| 2005 | 5.43 | 2.54 | 159.2 | 213.7% |
| 2004 | 5.24 | 2.56 | 161.3 | 205% |
| 2003 | 4.75 | 2.21 | 140.5 | 214.6% |
| 2002 | 4.49 | 2.26 | 144.4 | 198.4% |
| 2001 | 4.19 | 2.13 | 136.8 | 196.8% |
| 2000 | 3.89 | 2.12 | 136.8 | 183.5% |
| 1999 | 3.05 | 1.93 | 125 | 157.7% |
| 1998 | 3.19 | 2.15 | 137.4 | 148.3% |
| 1997 | 3.23 | 2.27 | 141.2 | 142.7% |
| 1996 | 3.13 | 2.5 | 152.3 | 125.4% |
| 1995 | 3.26 | 2.6 | 155.3 | 125.4% |
| 1994 | 3.73 | 3.18 | 186.5 | 117.2% |
| 1993 | 4.01 | 3.62 | 209.8 | 110.7% |
| 1992 | 4.62 | 4.4 | 253.8 | 105.1% |