| Year | Value | | 2022 | 354,976 | | 2021 | 321,535 | | 2020 | 301,104 | | 2019 | 291,186 | | 2018 | 278,618 | | 2017 | 268,061 | | 2016 | 259,522 | | 2015 | 250,939 | | 2014 | 241,782 | | 2013 | 233,205 | | 2012 | 226,802 | | 2011 | 221,984 | | 2010 | 217,570 | | 2009 | 213,267 | | 2008 | 208,691 | | 2007 | 203,785 | | 2006 | 198,701 | | 2005 | 193,781 | | 2004 | 189,187 | | 2003 | 186,266 | | 2002 | 184,431 | | 2001 | 182,629 | | 2000 | 181,307 | | 1999 | 178,248 | | 1998 | 171,423 | | 1997 | 164,206 | | 1996 | 158,069 | | 1995 | 151,292 | | 1994 | 147,542 | | 1993 | 148,299 | | 1992 | 148,883 | | 1991 | 147,741 | | 1990 | 145,999 | | 1989 | 143,946 | | 1988 | 141,076 | | 1987 | 138,088 | | 1986 | 136,173 | | 1985 | 135,014 | | 1984 | 133,304 | | 1983 | 131,455 | | 1982 | 129,931 | | 1981 | 128,526 | | 1980 | 126,459 | | 1979 | 123,622 | | 1978 | 121,015 | | 1977 | 118,444 | | 1976 | 116,301 | | 1975 | 115,011 | | 1974 | 113,720 | | 1973 | 112,854 | | 1972 | 112,120 | | 1971 | 110,782 | | 1970 | 109,134 | | 1969 | 107,610 | | 1968 | 106,088 | | 1967 | 104,939 | | 1966 | 103,750 | | 1965 | 102,363 | | 1964 | 100,949 | | 1963 | 98,767 | | 1962 | 96,411 | | 1961 | 94,035 | | 1960 | 91,414 |
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