Year | Value | 2022 | 158,700 | 2021 | 164,622 | 2020 | 172,315 | 2019 | 179,196 | 2018 | 183,380 | 2017 | 186,906 | 2016 | 189,264 | 2015 | 189,119 | 2014 | 185,371 | 2013 | 175,791 | 2012 | 160,938 | 2011 | 145,874 | 2010 | 133,835 | 2009 | 126,435 | 2008 | 121,866 | 2007 | 116,943 | 2006 | 111,818 | 2005 | 106,614 | 2004 | 101,445 | 2003 | 95,890 | 2002 | 90,077 | 2001 | 84,709 | 2000 | 79,900 | 1999 | 75,655 | 1998 | 71,921 | 1997 | 68,643 | 1996 | 65,803 | 1995 | 63,333 | 1994 | 61,169 | 1993 | 58,983 | 1992 | 56,767 | 1991 | 54,815 | 1990 | 53,086 | 1989 | 51,493 | 1988 | 49,966 | 1987 | 48,465 | 1986 | 46,967 | 1985 | 45,466 | 1984 | 43,512 | 1983 | 41,113 | 1982 | 38,743 | 1981 | 36,448 | 1980 | 34,264 | 1979 | 31,989 | 1978 | 29,686 | 1977 | 27,945 | 1976 | 26,845 | 1975 | 26,096 | 1974 | 25,651 | 1973 | 25,650 | 1972 | 25,563 | 1971 | 25,007 | 1970 | 24,341 | 1969 | 23,691 | 1968 | 23,117 | 1967 | 22,620 | 1966 | 22,171 | 1965 | 21,737 | 1964 | 21,311 | 1963 | 20,893 | 1962 | 20,489 | 1961 | 20,112 | 1960 | 19,774 |
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