Year | Value | 2022 | 846 | 2021 | 877 | 2020 | 919 | 2019 | 951 | 2018 | 956 | 2017 | 948 | 2016 | 931 | 2015 | 908 | 2014 | 884 | 2013 | 858 | 2012 | 835 | 2011 | 821 | 2010 | 807 | 2009 | 784 | 2008 | 757 | 2007 | 730 | 2006 | 704 | 2005 | 685 | 2004 | 672 | 2003 | 664 | 2002 | 659 | 2001 | 654 | 2000 | 644 | 1999 | 630 | 1998 | 614 | 1997 | 596 | 1996 | 581 | 1995 | 566 | 1994 | 552 | 1993 | 537 | 1992 | 524 | 1991 | 512 | 1990 | 505 | 1989 | 504 | 1988 | 507 | 1987 | 512 | 1986 | 520 | 1985 | 527 | 1984 | 530 | 1983 | 532 | 1982 | 536 | 1981 | 522 | 1980 | 494 | 1979 | 476 | 1978 | 465 | 1977 | 459 | 1976 | 455 | 1975 | 451 | 1974 | 443 | 1973 | 429 | 1972 | 416 | 1971 | 401 | 1970 | 388 | 1969 | 374 | 1968 | 351 | 1967 | 330 | 1966 | 311 | 1965 | 293 | 1964 | 277 | 1963 | 262 | 1962 | 250 | 1961 | 236 | 1960 | 225 |
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