| Year | Value | | 2022 | 268,677 | | 2021 | 269,141 | | 2020 | 268,189 | | 2019 | 264,428 | | 2018 | 257,076 | | 2017 | 246,413 | | 2016 | 233,943 | | 2015 | 221,221 | | 2014 | 208,783 | | 2013 | 197,569 | | 2012 | 187,806 | | 2011 | 178,873 | | 2010 | 170,572 | | 2009 | 163,097 | | 2008 | 156,629 | | 2007 | 150,872 | | 2006 | 145,881 | | 2005 | 140,877 | | 2004 | 135,045 | | 2003 | 129,612 | | 2002 | 125,903 | | 2001 | 123,130 | | 2000 | 121,594 | | 1999 | 121,659 | | 1998 | 120,823 | | 1997 | 117,687 | | 1996 | 113,795 | | 1995 | 110,579 | | 1994 | 108,151 | | 1993 | 106,452 | | 1992 | 105,479 | | 1991 | 104,742 | | 1990 | 103,671 | | 1989 | 102,253 | | 1988 | 100,726 | | 1987 | 99,114 | | 1986 | 97,110 | | 1985 | 94,758 | | 1984 | 91,973 | | 1983 | 88,533 | | 1982 | 84,446 | | 1981 | 80,026 | | 1980 | 75,528 | | 1979 | 71,082 | | 1978 | 66,723 | | 1977 | 62,468 | | 1976 | 58,582 | | 1975 | 55,251 | | 1974 | 52,385 | | 1973 | 49,955 | | 1972 | 47,987 | | 1971 | 46,313 | | 1970 | 44,674 | | 1969 | 43,058 | | 1968 | 41,528 | | 1967 | 40,091 | | 1966 | 38,693 | | 1965 | 37,363 | | 1964 | 36,098 | | 1963 | 34,858 | | 1962 | 33,644 | | 1961 | 32,459 | | 1960 | 31,307 |
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