Year | Value | 2022 | 176,612 | 2021 | 179,759 | 2020 | 182,375 | 2019 | 183,854 | 2018 | 184,933 | 2017 | 184,964 | 2016 | 183,459 | 2015 | 181,645 | 2014 | 179,220 | 2013 | 175,782 | 2012 | 171,994 | 2011 | 168,154 | 2010 | 164,484 | 2009 | 161,295 | 2008 | 158,881 | 2007 | 157,383 | 2006 | 156,870 | 2005 | 156,643 | 2004 | 155,917 | 2003 | 154,905 | 2002 | 153,711 | 2001 | 151,510 | 2000 | 149,230 | 1999 | 147,901 | 1998 | 147,130 | 1997 | 147,620 | 1996 | 150,324 | 1995 | 152,303 | 1994 | 151,559 | 1993 | 148,312 | 1992 | 141,831 | 1991 | 131,966 | 1990 | 122,166 | 1989 | 114,822 | 1988 | 108,989 | 1987 | 104,753 | 1986 | 102,011 | 1985 | 99,783 | 1984 | 97,206 | 1983 | 95,000 | 1982 | 94,249 | 1981 | 95,237 | 1980 | 97,180 | 1979 | 99,473 | 1978 | 102,111 | 1977 | 104,367 | 1976 | 106,348 | 1975 | 108,649 | 1974 | 111,356 | 1973 | 114,869 | 1972 | 118,796 | 1971 | 122,605 | 1970 | 127,111 | 1969 | 129,732 | 1968 | 129,612 | 1967 | 129,462 | 1966 | 128,486 | 1965 | 125,615 | 1964 | 123,857 | 1963 | 123,597 | 1962 | 122,668 | 1961 | 121,939 | 1960 | 121,316 |
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