Year | Value | 2022 | 87,564 | 2021 | 80,988 | 2020 | 75,600 | 2019 | 70,592 | 2018 | 65,197 | 2017 | 59,543 | 2016 | 53,459 | 2015 | 47,148 | 2014 | 41,113 | 2013 | 36,076 | 2012 | 32,982 | 2011 | 32,443 | 2010 | 34,372 | 2009 | 38,088 | 2008 | 42,439 | 2007 | 46,203 | 2006 | 48,591 | 2005 | 49,598 | 2004 | 49,665 | 2003 | 49,201 | 2002 | 48,677 | 2001 | 48,471 | 2000 | 48,490 | 1999 | 49,152 | 1998 | 50,571 | 1997 | 51,997 | 1996 | 52,564 | 1995 | 52,018 | 1994 | 51,040 | 1993 | 49,991 | 1992 | 49,019 | 1991 | 47,727 | 1990 | 46,255 | 1989 | 44,369 | 1988 | 41,642 | 1987 | 38,820 | 1986 | 36,322 | 1985 | 34,705 | 1984 | 34,507 | 1983 | 35,323 | 1982 | 36,430 | 1981 | 37,242 | 1980 | 37,301 | 1979 | 36,668 | 1978 | 35,714 | 1977 | 34,609 | 1976 | 33,544 | 1975 | 32,824 | 1974 | 32,350 | 1973 | 32,075 | 1972 | 31,922 | 1971 | 31,714 | 1970 | 31,401 | 1969 | 30,897 | 1968 | 30,134 | 1967 | 29,115 | 1966 | 27,784 | 1965 | 26,089 | 1964 | 24,170 | 1963 | 22,110 | 1962 | 20,128 | 1961 | 18,602 | 1960 | 17,737 |
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