Year | Value | 2022 | 53,754 | 2021 | 52,011 | 2020 | 50,432 | 2019 | 48,589 | 2018 | 46,672 | 2017 | 45,552 | 2016 | 44,961 | 2015 | 44,443 | 2014 | 44,331 | 2013 | 44,348 | 2012 | 43,585 | 2011 | 42,286 | 2010 | 41,002 | 2009 | 39,747 | 2008 | 38,691 | 2007 | 37,916 | 2006 | 37,383 | 2005 | 36,901 | 2004 | 36,267 | 2003 | 35,398 | 2002 | 34,313 | 2001 | 32,722 | 2000 | 31,192 | 1999 | 30,830 | 1998 | 31,058 | 1997 | 31,086 | 1996 | 30,994 | 1995 | 31,182 | 1994 | 31,499 | 1993 | 31,717 | 1992 | 32,089 | 1991 | 32,979 | 1990 | 32,853 | 1989 | 31,833 | 1988 | 31,277 | 1987 | 30,661 | 1986 | 30,056 | 1985 | 29,533 | 1984 | 29,085 | 1983 | 28,651 | 1982 | 28,233 | 1981 | 27,823 | 1980 | 27,419 | 1979 | 27,021 | 1978 | 26,629 | 1977 | 26,240 | 1976 | 25,843 | 1975 | 25,435 | 1974 | 25,012 | 1973 | 24,572 | 1972 | 24,116 | 1971 | 23,651 | 1970 | 23,181 | 1969 | 22,713 | 1968 | 22,248 | 1967 | 21,786 | 1966 | 21,326 | 1965 | 20,869 | 1964 | 20,411 | 1963 | 19,945 | 1962 | 19,467 | 1961 | 18,984 | 1960 | 18,497 |
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