Year | Value | 2022 | 139,000 | 2021 | 131,999 | 2020 | 124,977 | 2019 | 118,699 | 2018 | 112,040 | 2017 | 104,153 | 2016 | 96,438 | 2015 | 88,749 | 2014 | 80,573 | 2013 | 72,976 | 2012 | 67,646 | 2011 | 68,887 | 2010 | 72,270 | 2009 | 72,770 | 2008 | 73,037 | 2007 | 71,959 | 2006 | 69,428 | 2005 | 69,163 | 2004 | 72,020 | 2003 | 75,738 | 2002 | 79,304 | 2001 | 80,985 | 2000 | 80,286 | 1999 | 77,403 | 1998 | 73,090 | 1997 | 68,993 | 1996 | 65,211 | 1995 | 61,777 | 1994 | 58,693 | 1993 | 55,982 | 1992 | 53,602 | 1991 | 51,436 | 1990 | 49,408 | 1989 | 47,520 | 1988 | 45,753 | 1987 | 44,075 | 1986 | 42,490 | 1985 | 40,986 | 1984 | 39,523 | 1983 | 37,964 | 1982 | 36,310 | 1981 | 34,597 | 1980 | 32,752 | 1979 | 30,801 | 1978 | 28,751 | 1977 | 26,683 | 1976 | 24,798 | 1975 | 23,225 | 1974 | 21,968 | 1973 | 20,962 | 1972 | 20,436 | 1971 | 20,395 | 1970 | 20,510 | 1969 | 20,741 | 1968 | 21,121 | 1967 | 21,560 | 1966 | 21,905 | 1965 | 21,989 | 1964 | 21,657 | 1963 | 20,915 | 1962 | 19,994 | 1961 | 19,198 | 1960 | 18,687 |
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