Year | Value | 2022 | 91,314 | 2021 | 89,657 | 2020 | 87,994 | 2019 | 86,358 | 2018 | 85,133 | 2017 | 83,731 | 2016 | 81,783 | 2015 | 79,698 | 2014 | 77,394 | 2013 | 74,120 | 2012 | 70,401 | 2011 | 66,252 | 2010 | 61,979 | 2009 | 57,606 | 2008 | 53,125 | 2007 | 48,803 | 2006 | 44,856 | 2005 | 41,556 | 2004 | 38,945 | 2003 | 36,737 | 2002 | 34,897 | 2001 | 33,411 | 2000 | 31,965 | 1999 | 30,708 | 1998 | 30,025 | 1997 | 29,915 | 1996 | 30,252 | 1995 | 30,780 | 1994 | 31,131 | 1993 | 31,076 | 1992 | 30,580 | 1991 | 29,760 | 1990 | 28,901 | 1989 | 28,301 | 1988 | 28,087 | 1987 | 28,222 | 1986 | 28,430 | 1985 | 28,359 | 1984 | 27,826 | 1983 | 26,844 | 1982 | 25,564 | 1981 | 24,274 | 1980 | 23,310 | 1979 | 22,803 | 1978 | 22,713 | 1977 | 22,937 | 1976 | 23,272 | 1975 | 23,585 | 1974 | 23,829 | 1973 | 23,928 | 1972 | 23,832 | 1971 | 23,532 | 1970 | 23,056 | 1969 | 22,543 | 1968 | 22,556 | 1967 | 23,331 | 1966 | 24,321 | 1965 | 24,860 | 1964 | 24,504 | 1963 | 23,356 | 1962 | 22,426 | 1961 | 22,455 | 1960 | 23,055 |
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