| Year | Value | | 2022 | 138,468 | | 2021 | 136,257 | | 2020 | 132,170 | | 2019 | 128,069 | | 2018 | 121,834 | | 2017 | 112,488 | | 2016 | 103,031 | | 2015 | 95,706 | | 2014 | 91,581 | | 2013 | 90,116 | | 2012 | 87,573 | | 2011 | 86,377 | | 2010 | 87,547 | | 2009 | 83,998 | | 2008 | 76,382 | | 2007 | 69,481 | | 2006 | 63,167 | | 2005 | 57,492 | | 2004 | 52,642 | | 2003 | 49,005 | | 2002 | 46,743 | | 2001 | 45,373 | | 2000 | 44,391 | | 1999 | 43,541 | | 1998 | 42,661 | | 1997 | 41,688 | | 1996 | 40,576 | | 1995 | 39,325 | | 1994 | 37,966 | | 1993 | 36,488 | | 1992 | 34,885 | | 1991 | 33,201 | | 1990 | 31,087 | | 1989 | 28,671 | | 1988 | 26,465 | | 1987 | 24,443 | | 1986 | 22,585 | | 1985 | 20,894 | | 1984 | 19,394 | | 1983 | 18,116 | | 1982 | 17,065 | | 1981 | 16,077 | | 1980 | 14,769 | | 1979 | 13,318 | | 1978 | 12,111 | | 1977 | 11,120 | | 1976 | 10,302 | | 1975 | 9,615 | | 1974 | 9,028 | | 1973 | 8,523 | | 1972 | 8,089 | | 1971 | 7,757 | | 1970 | 7,612 | | 1969 | 7,557 | | 1968 | 7,445 | | 1967 | 7,285 | | 1966 | 7,087 | | 1965 | 6,848 | | 1964 | 6,534 | | 1963 | 6,205 | | 1962 | 5,938 | | 1961 | 5,711 | | 1960 | 5,505 |
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