
| 2024 | 2.04 | 0.26 | 75.43 | 777.1% |
| 2023 | 1.6 | 0.25 | 72.26 | 647.1% |
| 2022 | 0.76 | 0.18 | 53.27 | 418.7% |
| 2021 | 0.64 | 0.21 | 62.16 | 309.2% |
| 2020 | 0.92 | 0.21 | 64.81 | 430.4% |
| 2019 | 1.12 | 0.21 | 65.99 | 526.9% |
| 2018 | 1.13 | 0.19 | 61.31 | 580.2% |
| 2017 | 1.04 | 0.18 | 57.19 | 587.3% |
| 2016 | 0.89 | 0.16 | 53.11 | 551.7% |
| 2015 | 0.62 | 0.16 | 53.68 | 390.8% |
| 2014 | 0.48 | 0.17 | 57.37 | 289.7% |
| 2013 | 0.43 | 0.16 | 56.82 | 264.2% |
| 2012 | 0.48 | 0.14 | 51.03 | 339.6% |
| 2011 | 0.37 | 0.12 | 43.71 | 307.6% |
| 2010 | 0.38 | 0.11 | 41.78 | 333.6% |
| 2009 | 0.18 | 0.09 | 34.09 | 203% |
| 2008 | 0.13 | 0.09 | 32.54 | 146.1% |
| 2007 | 0.11 | 0.08 | 31.17 | 131.4% |
| 2006 | 0.09 | 0.07 | 28.35 | 123.2% |
| 2005 | 0.08 | 0.07 | 27.09 | 116.2% |
| 2004 | 0.09 | 0.07 | 26.44 | 133.7% |
| 2003 | 0.05 | 0.06 | 24.13 | 85.4% |
| 2002 | 0.04 | 0.06 | 24.53 | 66.8% |
| 2001 | 0.04 | 0.06 | 23.22 | 65.7% |
| 2000 | 0.04 | 0.06 | 23.62 | 64.9% |
| 1999 | 0.04 | 0.06 | 22.98 | 63.5% |
| 1998 | 0.04 | 0.06 | 23.09 | 63.3% |
| 1997 | 0.04 | 0.05 | 22.05 | 67.4% |
| 1996 | 0.04 | 0.06 | 27.48 | 55.5% |
| 1995 | 0.04 | 0.06 | 27.41 | 56.6% |
| 1994 | 0.04 | 0.07 | 28.77 | 54.9% |
| 1993 | 0.04 | 0.07 | 30.28 | 58.2% |
| 1992 | 0.05 | 0.07 | 33.24 | 62.8% |
| 1991 | 0.05 | 0.08 | 37.49 | 64.6% |
| 1990 | 0.06 | 0.08 | 38.33 | 74.7% |
| 1989 | 0.08 | 0.09 | 42.35 | 83.9% |
| 1988 | 0.08 | 0.09 | 45.52 | 81.7% |
| 1987 | 0.07 | 0.09 | 44.69 | 77.2% |
| 1986 | 0.06 | 0.09 | 44.08 | 69.6% |
| 1985 | 0.05 | 0.08 | 41.86 | 64.4% |
| 1984 | 0.05 | 0.07 | 38.2 | 63% |
| 1983 | 0.05 | 0.07 | 38.88 | 63.6% |
| 1982 | 0.04 | 0.07 | 39.53 | 63.1% |
| 1981 | 0.04 | 0.06 | 32.92 | 64.1% |
| 1980 | 0.04 | 0.06 | 37.27 | 68.7% |