Year | Value | 2021 | 2,541.7117464141 | 2020 | 2,290.3924752982 | 2019 | 2,178.8029551964 | 2018 | 1,868.0981250223 | 2017 | 1,716.254391932 | 2016 | 1,590.9372906394 | 2015 | 1,205.9318368434 | 2014 | 1,082.6609889078 | 2013 | 964.94409736278 | 2012 | 870.41458141561 | 2011 | 845.21449031315 | 2010 | 768.86805038887 | 2009 | 691.20051628982 | 2008 | 622.17833172651 | 2007 | 537.44157871824 | 2006 | 484.90923777848 | 2005 | 473.64041697155 | 2004 | 450.75357148819 | 2003 | 422.01092214398 | 2002 | 390.17916480348 | 2001 | 388.52983856388 | 2000 | 392.89765998593 | 1999 | 384.20008844828 | 1998 | 381.17989190112 | 1997 | 375.19687182495 | 1996 | 366.30715109573 | 1995 | 306.01977728763 | 1994 | 277.7452209141 | 1993 | 276.96305748948 | 1992 | 268.83618677797 | 1991 | 266.99520547601 | 1990 | 277.36460866996 | 1989 | 258.83458257634 | 1988 | 244.16911500644 | 1987 | 228.7085120267 | 1986 | 208.71416966202 | 1985 | 218.36968119407 | 1984 | 192.18057055065 | 1983 | 183.70163228673 | 1982 | 195.95917936248 | 1981 | 220.3052107653 | 1980 | 198.65435181972 | 1979 | 174.13488842051 | 1978 | 150.27795991244 | 1977 | 110.76760321408 | 1976 | 121.18971099439 | 1975 | 239.24700179472 | 1974 | 158.90897921099 | 1973 | 104.88308976052 |
|