Year | Value | 2022 | 54,465 | 2021 | 52,688 | 2020 | 50,985 | 2019 | 49,340 | 2018 | 47,797 | 2017 | 46,088 | 2016 | 44,078 | 2015 | 41,973 | 2014 | 39,880 | 2013 | 37,841 | 2012 | 35,890 | 2011 | 34,096 | 2010 | 32,536 | 2009 | 31,281 | 2008 | 30,381 | 2007 | 29,797 | 2006 | 29,443 | 2005 | 29,247 | 2004 | 29,125 | 2003 | 29,009 | 2002 | 28,875 | 2001 | 28,698 | 2000 | 28,443 | 1999 | 28,091 | 1998 | 27,615 | 1997 | 26,993 | 1996 | 26,208 | 1995 | 25,235 | 1994 | 24,025 | 1993 | 22,587 | 1992 | 21,061 | 1991 | 19,619 | 1990 | 18,634 | 1989 | 18,095 | 1988 | 17,686 | 1987 | 17,411 | 1986 | 17,266 | 1985 | 17,227 | 1984 | 17,267 | 1983 | 17,365 | 1982 | 17,493 | 1981 | 17,616 | 1980 | 17,718 | 1979 | 18,021 | 1978 | 17,915 | 1977 | 17,392 | 1976 | 17,215 | 1975 | 17,251 | 1974 | 17,387 | 1973 | 17,326 | 1972 | 16,984 | 1971 | 16,714 | 1970 | 16,363 | 1969 | 15,980 | 1968 | 15,607 | 1967 | 15,101 | 1966 | 14,806 | 1965 | 14,789 | 1964 | 14,915 | 1963 | 14,815 | 1962 | 14,428 | 1961 | 14,042 | 1960 | 13,984 |
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