Year | Value | 2022 | 54,951 | 2021 | 52,394 | 2020 | 50,185 | 2019 | 48,033 | 2018 | 45,738 | 2017 | 43,526 | 2016 | 41,291 | 2015 | 38,939 | 2014 | 36,453 | 2013 | 33,917 | 2012 | 31,476 | 2011 | 29,294 | 2010 | 27,610 | 2009 | 26,459 | 2008 | 25,588 | 2007 | 24,777 | 2006 | 23,863 | 2005 | 22,772 | 2004 | 21,548 | 2003 | 20,333 | 2002 | 19,260 | 2001 | 18,394 | 2000 | 17,718 | 1999 | 16,976 | 1998 | 16,114 | 1997 | 15,306 | 1996 | 14,556 | 1995 | 13,870 | 1994 | 13,264 | 1993 | 12,614 | 1992 | 11,874 | 1991 | 11,150 | 1990 | 10,452 | 1989 | 9,749 | 1988 | 9,179 | 1987 | 8,774 | 1986 | 8,366 | 1985 | 7,916 | 1984 | 7,432 | 1983 | 6,942 | 1982 | 6,538 | 1981 | 6,250 | 1980 | 6,046 | 1979 | 5,964 | 1978 | 6,003 | 1977 | 6,111 | 1976 | 6,319 | 1975 | 6,586 | 1974 | 6,828 | 1973 | 7,056 | 1972 | 7,265 | 1971 | 7,466 | 1970 | 7,656 | 1969 | 7,783 | 1968 | 7,748 | 1967 | 7,602 | 1966 | 7,460 | 1965 | 7,335 | 1964 | 7,225 | 1963 | 7,136 | 1962 | 7,061 | 1961 | 6,985 | 1960 | 6,900 |
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