Year | Value | 2022 | 1,489 | 2021 | 1,418 | 2020 | 1,358 | 2019 | 1,313 | 2018 | 1,283 | 2017 | 1,265 | 2016 | 1,255 | 2015 | 1,247 | 2014 | 1,239 | 2013 | 1,232 | 2012 | 1,226 | 2011 | 1,222 | 2010 | 1,213 | 2009 | 1,199 | 2008 | 1,182 | 2007 | 1,162 | 2006 | 1,136 | 2005 | 1,109 | 2004 | 1,087 | 2003 | 1,075 | 2002 | 1,076 | 2001 | 1,089 | 2000 | 1,114 | 1999 | 1,144 | 1998 | 1,169 | 1997 | 1,178 | 1996 | 1,162 | 1995 | 1,117 | 1994 | 1,048 | 1993 | 965 | 1992 | 884 | 1991 | 820 | 1990 | 784 | 1989 | 766 | 1988 | 760 | 1987 | 756 | 1986 | 749 | 1985 | 734 | 1984 | 710 | 1983 | 680 | 1982 | 649 | 1981 | 635 | 1980 | 639 | 1979 | 639 | 1978 | 633 | 1977 | 620 | 1976 | 605 | 1975 | 590 | 1974 | 575 | 1973 | 567 | 1972 | 564 | 1971 | 558 | 1970 | 548 | 1969 | 535 | 1968 | 518 | 1967 | 500 | 1966 | 477 | 1965 | 453 | 1964 | 438 | 1963 | 427 | 1962 | 419 | 1961 | 412 | 1960 | 405 |
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