Year | Value | 2022 | 63,634 | 2021 | 62,794 | 2020 | 62,025 | 2019 | 59,512 | 2018 | 55,450 | 2017 | 51,782 | 2016 | 48,377 | 2015 | 45,249 | 2014 | 43,570 | 2013 | 42,725 | 2012 | 41,502 | 2011 | 40,360 | 2010 | 39,192 | 2009 | 37,649 | 2008 | 36,055 | 2007 | 34,860 | 2006 | 33,824 | 2005 | 32,785 | 2004 | 31,675 | 2003 | 30,558 | 2002 | 29,637 | 2001 | 28,877 | 2000 | 28,283 | 1999 | 27,855 | 1998 | 27,372 | 1997 | 27,087 | 1996 | 27,424 | 1995 | 27,883 | 1994 | 26,891 | 1993 | 27,290 | 1992 | 28,705 | 1991 | 28,679 | 1990 | 28,788 | 1989 | 28,861 | 1988 | 28,929 | 1987 | 28,853 | 1986 | 28,652 | 1985 | 28,502 | 1984 | 28,274 | 1983 | 27,996 | 1982 | 27,668 | 1981 | 27,348 | 1980 | 26,687 | 1979 | 25,966 | 1978 | 25,499 | 1977 | 24,916 | 1976 | 24,365 | 1975 | 23,875 | 1974 | 23,357 | 1973 | 22,877 | 1972 | 22,957 | 1971 | 22,987 | 1970 | 22,502 | 1969 | 22,064 | 1968 | 21,638 | 1967 | 21,177 | 1966 | 20,651 | 1965 | 20,100 | 1964 | 19,428 | 1963 | 18,631 | 1962 | 17,883 | 1961 | 17,153 | 1960 | 16,559 |
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