Year | Value | 2022 | 158,796 | 2021 | 157,198 | 2020 | 156,438 | 2019 | 155,183 | 2018 | 157,043 | 2017 | 159,207 | 2016 | 161,409 | 2015 | 163,478 | 2014 | 164,966 | 2013 | 165,775 | 2012 | 166,383 | 2011 | 165,760 | 2010 | 164,414 | 2009 | 163,352 | 2008 | 163,674 | 2007 | 165,095 | 2006 | 166,489 | 2005 | 166,731 | 2004 | 165,798 | 2003 | 162,652 | 2002 | 157,417 | 2001 | 151,951 | 2000 | 148,271 | 1999 | 144,674 | 1998 | 141,222 | 1997 | 137,564 | 1996 | 133,556 | 1995 | 129,536 | 1994 | 126,344 | 1993 | 124,114 | 1992 | 123,081 | 1991 | 122,057 | 1990 | 114,784 | 1989 | 110,511 | 1988 | 105,887 | 1987 | 101,466 | 1986 | 96,969 | 1985 | 94,291 | 1984 | 92,207 | 1983 | 90,266 | 1982 | 87,478 | 1981 | 84,574 | 1980 | 81,785 | 1979 | 78,840 | 1978 | 76,778 | 1977 | 75,479 | 1976 | 75,268 | 1975 | 76,046 | 1974 | 76,625 | 1973 | 76,996 | 1972 | 77,377 | 1971 | 77,693 | 1970 | 77,892 | 1969 | 78,039 | 1968 | 78,531 | 1967 | 78,964 | 1966 | 78,662 | 1965 | 78,354 | 1964 | 77,753 | 1963 | 76,238 | 1962 | 74,638 | 1961 | 72,983 | 1960 | 72,257 |
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