Year | Value | 2022 | 142,794 | 2021 | 160,108 | 2020 | 172,369 | 2019 | 174,029 | 2018 | 169,471 | 2017 | 163,356 | 2016 | 156,986 | 2015 | 156,851 | 2014 | 158,992 | 2013 | 155,325 | 2012 | 146,558 | 2011 | 137,187 | 2010 | 135,053 | 2009 | 133,034 | 2008 | 127,628 | 2007 | 120,171 | 2006 | 117,871 | 2005 | 125,012 | 2004 | 133,697 | 2003 | 138,200 | 2002 | 142,640 | 2001 | 148,039 | 2000 | 159,355 | 1999 | 173,543 | 1998 | 183,044 | 1997 | 187,179 | 1996 | 187,561 | 1995 | 183,261 | 1994 | 186,183 | 1993 | 187,764 | 1992 | 188,463 | 1991 | 189,600 | 1990 | 191,277 | 1989 | 194,550 | 1988 | 197,597 | 1987 | 203,021 | 1986 | 209,663 | 1985 | 215,041 | 1984 | 218,519 | 1983 | 219,623 | 1982 | 217,299 | 1981 | 214,110 | 1980 | 210,854 | 1979 | 209,504 | 1978 | 203,755 | 1977 | 205,611 | 1976 | 206,857 | 1975 | 205,953 | 1974 | 202,226 | 1973 | 197,482 | 1972 | 196,432 | 1971 | 200,522 | 1970 | 210,404 | 1969 | 223,658 | 1968 | 237,494 | 1967 | 248,393 | 1966 | 257,142 | 1965 | 268,378 | 1964 | 272,800 | 1963 | 276,825 | 1962 | 276,874 | 1961 | 272,461 | 1960 | 272,626 |
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