Year | Value | 2022 | 39,767 | 2021 | 39,023 | 2020 | 38,161 | 2019 | 37,021 | 2018 | 35,749 | 2017 | 34,455 | 2016 | 33,236 | 2015 | 32,151 | 2014 | 31,169 | 2013 | 30,283 | 2012 | 29,499 | 2011 | 28,801 | 2010 | 28,607 | 2009 | 28,454 | 2008 | 27,913 | 2007 | 27,405 | 2006 | 26,895 | 2005 | 26,384 | 2004 | 25,941 | 2003 | 25,535 | 2002 | 25,105 | 2001 | 24,687 | 2000 | 24,260 | 1999 | 23,822 | 1998 | 23,387 | 1997 | 22,967 | 1996 | 22,550 | 1995 | 22,138 | 1994 | 21,743 | 1993 | 21,344 | 1992 | 20,929 | 1991 | 20,500 | 1990 | 20,058 | 1989 | 19,593 | 1988 | 19,091 | 1987 | 18,562 | 1986 | 18,008 | 1985 | 17,425 | 1984 | 16,826 | 1983 | 16,200 | 1982 | 15,549 | 1981 | 14,898 | 1980 | 14,268 | 1979 | 13,655 | 1978 | 13,059 | 1977 | 12,502 | 1976 | 11,999 | 1975 | 11,560 | 1974 | 11,196 | 1973 | 10,923 | 1972 | 10,729 | 1971 | 10,563 | 1970 | 10,398 | 1969 | 10,237 | 1968 | 10,070 | 1967 | 9,902 | 1966 | 9,764 | 1965 | 9,684 | 1964 | 9,655 | 1963 | 9,695 | 1962 | 9,778 | 1961 | 9,852 | 1960 | 9,907 |
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