Year | Value | 2022 | 169,268 | 2021 | 171,475 | 2020 | 175,152 | 2019 | 176,724 | 2018 | 174,351 | 2017 | 169,882 | 2016 | 164,686 | 2015 | 159,690 | 2014 | 154,784 | 2013 | 149,933 | 2012 | 145,395 | 2011 | 140,473 | 2010 | 133,148 | 2009 | 125,215 | 2008 | 117,913 | 2007 | 110,019 | 2006 | 102,548 | 2005 | 95,919 | 2004 | 89,512 | 2003 | 83,433 | 2002 | 78,458 | 2001 | 74,759 | 2000 | 72,392 | 1999 | 71,396 | 1998 | 72,368 | 1997 | 74,404 | 1996 | 76,836 | 1995 | 79,200 | 1994 | 81,479 | 1993 | 83,278 | 1992 | 84,393 | 1991 | 85,773 | 1990 | 87,984 | 1989 | 90,725 | 1988 | 93,597 | 1987 | 96,612 | 1986 | 98,735 | 1985 | 99,223 | 1984 | 98,137 | 1983 | 95,403 | 1982 | 91,200 | 1981 | 86,387 | 1980 | 81,589 | 1979 | 76,778 | 1978 | 71,719 | 1977 | 66,726 | 1976 | 61,979 | 1975 | 57,795 | 1974 | 54,416 | 1973 | 51,983 | 1972 | 50,225 | 1971 | 48,505 | 1970 | 46,707 | 1969 | 44,764 | 1968 | 42,703 | 1967 | 40,648 | 1966 | 38,732 | 1965 | 37,060 | 1964 | 35,485 | 1963 | 33,986 | 1962 | 32,656 | 1961 | 31,417 | 1960 | 30,235 |
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