Year | Value | 2022 | 172,693 | 2021 | 174,957 | 2020 | 176,095 | 2019 | 174,328 | 2018 | 174,512 | 2017 | 174,897 | 2016 | 173,905 | 2015 | 170,788 | 2014 | 165,730 | 2013 | 159,973 | 2012 | 156,526 | 2011 | 154,050 | 2010 | 150,672 | 2009 | 147,027 | 2008 | 145,006 | 2007 | 144,966 | 2006 | 145,529 | 2005 | 145,040 | 2004 | 143,553 | 2003 | 139,716 | 2002 | 133,669 | 2001 | 128,839 | 2000 | 128,056 | 1999 | 129,671 | 1998 | 133,143 | 1997 | 137,004 | 1996 | 140,259 | 1995 | 142,832 | 1994 | 144,865 | 1993 | 145,666 | 1992 | 144,994 | 1991 | 142,466 | 1990 | 134,726 | 1989 | 134,547 | 1988 | 136,659 | 1987 | 139,538 | 1986 | 142,155 | 1985 | 146,844 | 1984 | 148,842 | 1983 | 146,979 | 1982 | 142,075 | 1981 | 137,773 | 1980 | 134,901 | 1979 | 132,563 | 1978 | 131,774 | 1977 | 131,236 | 1976 | 130,945 | 1975 | 129,912 | 1974 | 126,723 | 1973 | 123,304 | 1972 | 120,638 | 1971 | 118,095 | 1970 | 114,506 | 1969 | 109,904 | 1968 | 106,024 | 1967 | 102,556 | 1966 | 98,314 | 1965 | 94,710 | 1964 | 91,987 | 1963 | 89,165 | 1962 | 86,123 | 1961 | 81,774 | 1960 | 77,756 |
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