Year | Value | 2022 | 178,307 | 2021 | 175,251 | 2020 | 173,504 | 2019 | 171,938 | 2018 | 170,304 | 2017 | 168,373 | 2016 | 166,298 | 2015 | 165,385 | 2014 | 165,780 | 2013 | 166,994 | 2012 | 169,260 | 2011 | 172,385 | 2010 | 174,701 | 2009 | 176,044 | 2008 | 177,017 | 2007 | 176,951 | 2006 | 175,783 | 2005 | 174,536 | 2004 | 172,809 | 2003 | 170,167 | 2002 | 167,057 | 2001 | 163,990 | 2000 | 161,255 | 1999 | 158,724 | 1998 | 156,847 | 1997 | 155,891 | 1996 | 155,815 | 1995 | 155,954 | 1994 | 155,493 | 1993 | 154,569 | 1992 | 153,401 | 1991 | 151,347 | 1990 | 149,228 | 1989 | 148,200 | 1988 | 147,714 | 1987 | 148,308 | 1986 | 151,091 | 1985 | 153,177 | 1984 | 152,538 | 1983 | 149,404 | 1982 | 142,981 | 1981 | 133,066 | 1980 | 123,139 | 1979 | 115,664 | 1978 | 109,807 | 1977 | 105,548 | 1976 | 102,741 | 1975 | 100,402 | 1974 | 97,741 | 1973 | 95,559 | 1972 | 94,860 | 1971 | 95,930 | 1970 | 98,003 | 1969 | 100,381 | 1968 | 103,067 | 1967 | 105,404 | 1966 | 107,593 | 1965 | 110,019 | 1964 | 112,746 | 1963 | 116,392 | 1962 | 120,395 | 1961 | 124,227 | 1960 | 128,824 |
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