Year | Value | 2022 | 159,398 | 2021 | 164,525 | 2020 | 169,532 | 2019 | 170,822 | 2018 | 171,859 | 2017 | 170,473 | 2016 | 167,427 | 2015 | 164,205 | 2014 | 162,282 | 2013 | 161,984 | 2012 | 163,618 | 2011 | 165,687 | 2010 | 166,953 | 2009 | 166,442 | 2008 | 164,299 | 2007 | 160,660 | 2006 | 156,079 | 2005 | 151,098 | 2004 | 146,514 | 2003 | 141,759 | 2002 | 136,912 | 2001 | 132,775 | 2000 | 130,370 | 1999 | 128,298 | 1998 | 126,795 | 1997 | 125,631 | 1996 | 123,772 | 1995 | 119,973 | 1994 | 114,947 | 1993 | 109,095 | 1992 | 102,841 | 1991 | 97,926 | 1990 | 91,483 | 1989 | 89,408 | 1988 | 87,321 | 1987 | 85,296 | 1986 | 82,530 | 1985 | 79,699 | 1984 | 76,411 | 1983 | 73,996 | 1982 | 72,312 | 1981 | 71,544 | 1980 | 71,765 | 1979 | 73,018 | 1978 | 75,020 | 1977 | 76,436 | 1976 | 77,301 | 1975 | 77,557 | 1974 | 77,137 | 1973 | 76,888 | 1972 | 76,925 | 1971 | 77,127 | 1970 | 77,203 | 1969 | 76,656 | 1968 | 75,691 | 1967 | 74,570 | 1966 | 73,043 | 1965 | 71,732 | 1964 | 71,091 | 1963 | 70,777 | 1962 | 70,514 | 1961 | 69,549 | 1960 | 68,696 |
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