Year | Value | 2022 | 4,123 | 2021 | 4,136 | 2020 | 4,156 | 2019 | 4,176 | 2018 | 4,185 | 2017 | 4,190 | 2016 | 4,184 | 2015 | 4,160 | 2014 | 4,118 | 2013 | 4,064 | 2012 | 4,008 | 2011 | 3,961 | 2010 | 3,936 | 2009 | 3,955 | 2008 | 4,007 | 2007 | 4,056 | 2006 | 4,083 | 2005 | 4,075 | 2004 | 4,009 | 2003 | 3,897 | 2002 | 3,756 | 2001 | 3,592 | 2000 | 3,418 | 1999 | 3,256 | 1998 | 3,096 | 1997 | 2,932 | 1996 | 2,799 | 1995 | 2,658 | 1994 | 2,512 | 1993 | 2,409 | 1992 | 2,317 | 1991 | 2,208 | 1990 | 2,108 | 1989 | 1,965 | 1988 | 1,878 | 1987 | 1,818 | 1986 | 1,773 | 1985 | 1,721 | 1984 | 1,675 | 1983 | 1,663 | 1982 | 1,660 | 1981 | 1,657 | 1980 | 1,667 | 1979 | 1,602 | 1978 | 1,558 | 1977 | 1,465 | 1976 | 1,467 | 1975 | 1,407 | 1974 | 1,308 | 1973 | 1,194 | 1972 | 1,061 | 1971 | 972 | 1970 | 870 | 1969 | 841 | 1968 | 790 | 1967 | 706 | 1966 | 667 | 1965 | 622 | 1964 | 571 | 1963 | 541 | 1962 | 464 | 1961 | 450 | 1960 | 465 |
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