Year | Value | 2022 | 39,211 | 2021 | 37,893 | 2020 | 36,532 | 2019 | 35,173 | 2018 | 33,793 | 2017 | 32,344 | 2016 | 30,937 | 2015 | 29,656 | 2014 | 28,508 | 2013 | 27,452 | 2012 | 26,500 | 2011 | 25,637 | 2010 | 24,842 | 2009 | 24,114 | 2008 | 23,409 | 2007 | 22,731 | 2006 | 22,078 | 2005 | 21,474 | 2004 | 20,938 | 2003 | 20,411 | 2002 | 19,899 | 2001 | 19,417 | 2000 | 18,951 | 1999 | 18,482 | 1998 | 18,009 | 1997 | 17,545 | 1996 | 17,032 | 1995 | 16,444 | 1994 | 15,782 | 1993 | 15,796 | 1992 | 15,975 | 1991 | 15,590 | 1990 | 15,199 | 1989 | 14,802 | 1988 | 14,399 | 1987 | 13,990 | 1986 | 13,579 | 1985 | 13,164 | 1984 | 12,731 | 1983 | 12,275 | 1982 | 11,821 | 1981 | 11,389 | 1980 | 11,001 | 1979 | 10,660 | 1978 | 10,360 | 1977 | 10,088 | 1976 | 9,834 | 1975 | 9,596 | 1974 | 9,381 | 1973 | 9,189 | 1972 | 9,013 | 1971 | 8,843 | 1970 | 8,658 | 1969 | 8,453 | 1968 | 8,235 | 1967 | 8,027 | 1966 | 7,876 | 1965 | 7,820 | 1964 | 7,869 | 1963 | 8,023 | 1962 | 8,248 | 1961 | 8,480 | 1960 | 8,678 |
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