Year | Value | 2022 | 154,273 | 2021 | 144,687 | 2020 | 148,309 | 2019 | 152,284 | 2018 | 158,782 | 2017 | 166,491 | 2016 | 174,401 | 2015 | 183,006 | 2014 | 190,623 | 2013 | 195,736 | 2012 | 199,662 | 2011 | 203,616 | 2010 | 208,073 | 2009 | 213,165 | 2008 | 217,806 | 2007 | 222,129 | 2006 | 225,749 | 2005 | 228,179 | 2004 | 231,203 | 2003 | 234,751 | 2002 | 237,575 | 2001 | 239,984 | 2000 | 241,591 | 1999 | 241,192 | 1998 | 238,437 | 1997 | 233,345 | 1996 | 225,924 | 1995 | 217,598 | 1994 | 208,927 | 1993 | 200,272 | 1992 | 193,570 | 1991 | 190,561 | 1990 | 190,238 | 1989 | 191,802 | 1988 | 195,686 | 1987 | 199,590 | 1986 | 202,760 | 1985 | 205,914 | 1984 | 207,825 | 1983 | 209,727 | 1982 | 214,254 | 1981 | 219,620 | 1980 | 223,567 | 1979 | 226,854 | 1978 | 229,243 | 1977 | 229,965 | 1976 | 229,582 | 1975 | 228,010 | 1974 | 223,955 | 1973 | 217,775 | 1972 | 210,332 | 1971 | 199,380 | 1970 | 186,532 | 1969 | 176,655 | 1968 | 168,581 | 1967 | 160,819 | 1966 | 156,706 | 1965 | 156,838 | 1964 | 156,574 | 1963 | 154,765 | 1962 | 152,856 | 1961 | 149,676 | 1960 | 143,412 |
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