Year | Value | 2022 | 643 | 2021 | 623 | 2020 | 608 | 2019 | 591 | 2018 | 577 | 2017 | 562 | 2016 | 546 | 2015 | 533 | 2014 | 521 | 2013 | 510 | 2012 | 505 | 2011 | 503 | 2010 | 500 | 2009 | 498 | 2008 | 496 | 2007 | 498 | 2006 | 503 | 2005 | 504 | 2004 | 506 | 2003 | 510 | 2002 | 513 | 2001 | 515 | 2000 | 519 | 1999 | 526 | 1998 | 532 | 1997 | 533 | 1996 | 528 | 1995 | 519 | 1994 | 503 | 1993 | 483 | 1992 | 457 | 1991 | 429 | 1990 | 400 | 1989 | 372 | 1988 | 344 | 1987 | 318 | 1986 | 291 | 1985 | 266 | 1984 | 246 | 1983 | 229 | 1982 | 217 | 1981 | 206 | 1980 | 195 | 1979 | 185 | 1978 | 174 | 1977 | 160 | 1976 | 143 | 1975 | 125 | 1974 | 112 | 1973 | 104 | 1972 | 97 | 1971 | 91 | 1970 | 87 | 1969 | 83 | 1968 | 77 | 1967 | 72 | 1966 | 68 | 1965 | 65 | 1964 | 63 | 1963 | 64 | 1962 | 63 | 1961 | 62 | 1960 | 62 |
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