Year | Value | 2022 | 61,510 | 2021 | 61,996 | 2020 | 62,225 | 2019 | 62,384 | 2018 | 63,547 | 2017 | 65,677 | 2016 | 67,780 | 2015 | 69,722 | 2014 | 71,780 | 2013 | 73,321 | 2012 | 74,778 | 2011 | 77,010 | 2010 | 78,973 | 2009 | 80,140 | 2008 | 80,909 | 2007 | 81,666 | 2006 | 81,387 | 2005 | 80,789 | 2004 | 79,844 | 2003 | 78,722 | 2002 | 77,550 | 2001 | 76,254 | 2000 | 74,777 | 1999 | 73,300 | 1998 | 72,474 | 1997 | 72,551 | 1996 | 73,466 | 1995 | 75,007 | 1994 | 76,403 | 1993 | 77,591 | 1992 | 78,632 | 1991 | 79,032 | 1990 | 78,585 | 1989 | 78,153 | 1988 | 78,132 | 1987 | 78,227 | 1986 | 78,376 | 1985 | 79,336 | 1984 | 81,241 | 1983 | 83,240 | 1982 | 85,045 | 1981 | 86,431 | 1980 | 86,933 | 1979 | 86,025 | 1978 | 84,018 | 1977 | 81,446 | 1976 | 78,245 | 1975 | 72,828 | 1974 | 67,705 | 1973 | 65,503 | 1972 | 64,415 | 1971 | 64,061 | 1970 | 65,453 | 1969 | 67,172 | 1968 | 67,047 | 1967 | 65,887 | 1966 | 65,065 | 1965 | 64,701 | 1964 | 64,695 | 1963 | 65,156 | 1962 | 65,898 | 1961 | 66,557 | 1960 | 67,343 |
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