Year | Value | 2022 | 77,685 | 2021 | 77,606 | 2020 | 77,415 | 2019 | 77,322 | 2018 | 78,706 | 2017 | 81,586 | 2016 | 85,829 | 2015 | 91,059 | 2014 | 97,314 | 2013 | 105,059 | 2012 | 115,258 | 2011 | 127,133 | 2010 | 139,144 | 2009 | 149,424 | 2008 | 156,395 | 2007 | 159,720 | 2006 | 160,204 | 2005 | 159,850 | 2004 | 159,531 | 2003 | 158,712 | 2002 | 156,278 | 2001 | 152,940 | 2000 | 149,354 | 1999 | 145,086 | 1998 | 141,192 | 1997 | 138,236 | 1996 | 136,196 | 1995 | 134,711 | 1994 | 134,802 | 1993 | 137,315 | 1992 | 142,992 | 1991 | 146,568 | 1990 | 145,866 | 1989 | 142,362 | 1988 | 139,490 | 1987 | 140,388 | 1986 | 142,328 | 1985 | 146,147 | 1984 | 151,491 | 1983 | 158,034 | 1982 | 165,621 | 1981 | 173,998 | 1980 | 182,430 | 1979 | 189,966 | 1978 | 193,993 | 1977 | 193,014 | 1976 | 187,985 | 1975 | 179,189 | 1974 | 168,095 | 1973 | 156,593 | 1972 | 145,320 | 1971 | 134,672 | 1970 | 126,086 | 1969 | 119,002 | 1968 | 112,135 | 1967 | 105,264 | 1966 | 96,934 | 1965 | 86,474 | 1964 | 75,541 | 1963 | 65,027 | 1962 | 57,318 | 1961 | 55,246 | 1960 | 58,491 |
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