Year | Value | 2022 | 61,777 | 2021 | 60,149 | 2020 | 58,358 | 2019 | 56,351 | 2018 | 54,184 | 2017 | 51,924 | 2016 | 49,605 | 2015 | 47,293 | 2014 | 45,095 | 2013 | 43,123 | 2012 | 41,483 | 2011 | 40,250 | 2010 | 39,520 | 2009 | 39,135 | 2008 | 38,804 | 2007 | 38,432 | 2006 | 37,979 | 2005 | 37,487 | 2004 | 37,049 | 2003 | 36,742 | 2002 | 36,606 | 2001 | 36,592 | 2000 | 36,563 | 1999 | 36,400 | 1998 | 36,042 | 1997 | 35,432 | 1996 | 34,550 | 1995 | 33,457 | 1994 | 32,282 | 1993 | 31,150 | 1992 | 30,285 | 1991 | 29,687 | 1990 | 29,135 | 1989 | 28,573 | 1988 | 28,003 | 1987 | 27,426 | 1986 | 26,853 | 1985 | 26,289 | 1984 | 25,726 | 1983 | 25,145 | 1982 | 24,419 | 1981 | 23,335 | 1980 | 21,892 | 1979 | 20,280 | 1978 | 18,723 | 1977 | 17,492 | 1976 | 16,758 | 1975 | 16,766 | 1974 | 17,516 | 1973 | 18,121 | 1972 | 18,171 | 1971 | 17,924 | 1970 | 17,492 | 1969 | 17,068 | 1968 | 16,774 | 1967 | 16,653 | 1966 | 16,654 | 1965 | 16,680 | 1964 | 16,662 | 1963 | 16,554 | 1962 | 16,352 | 1961 | 16,118 | 1960 | 15,959 |
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