Year | Value | 2021 | 1,827.413026121 | 2020 | 1,265.065943534 | 2019 | 1,353.426977272 | 2018 | 1,285.344187 | 2017 | 1,574.378609 | 2016 | 1,505.4059084 | 2015 | 1,479.9763156 | 2014 | 1,596.3044 | 2013 | 1,560.81076 | 2012 | 1,369.8998203763 | 2011 | 1,241.293 | 2010 | 1,067.351 | 2009 | 1,427.499 | 2008 | 981.682 | 2007 | 755.193 | 2006 | 740.386 | 2005 | 705.13 | 2004 | 712.952 | 2003 | 604.608 | 2002 | 655.425 | 2001 | 852.778 | 2000 | 1,017.479 | 1999 | 535.4000244141 | 1998 | 473 | 1997 | 677.5999755859 | 1996 | 590.9000244141 | 1995 | 594.5999755859 | 1994 | 515.200012207 | 1993 | 478.200012207 | 1992 | 386.299987793 | 1991 | 485.799987793 | 1990 | 656.4000244141 | 1989 | 660.700012207 | 1988 | 650.5 | 1987 | 535.5 | 1986 | 574.799987793 | 1985 | 565 | 1984 | 525.4000244141 | 1983 | 489.1000061035 | 1982 | 479.1000061035 | 1981 | 441.5 | 1980 | 394.5 | 1979 | 395.200012207 | 1978 | 375.799987793 | 1977 | 338.8999938965 | 1976 | 316.700012207 | 1975 | 281.200012207 | 1974 | 286.1000061035 | 1973 | 238.6000061035 | 1972 | 224.5 | 1971 | 202.3999938965 | 1970 | 184 |
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