| Year | Value | | 2022 | 354,056 | | 2021 | 349,858 | | 2020 | 345,650 | | 2019 | 341,423 | | 2018 | 337,123 | | 2017 | 332,655 | | 2016 | 327,973 | | 2015 | 323,086 | | 2014 | 318,042 | | 2013 | 312,881 | | 2012 | 307,643 | | 2011 | 302,374 | | 2010 | 296,885 | | 2009 | 291,203 | | 2008 | 285,549 | | 2007 | 279,864 | | 2006 | 274,122 | | 2005 | 268,301 | | 2004 | 262,394 | | 2003 | 256,403 | | 2002 | 250,333 | | 2001 | 244,153 | | 2000 | 237,635 | | 1999 | 231,119 | | 1998 | 224,651 | | 1997 | 218,204 | | 1996 | 211,759 | | 1995 | 205,312 | | 1994 | 198,884 | | 1993 | 192,477 | | 1992 | 186,085 | | 1991 | 179,686 | | 1990 | 174,020 | | 1989 | 168,258 | | 1988 | 162,533 | | 1987 | 156,876 | | 1986 | 151,324 | | 1985 | 145,926 | | 1984 | 140,720 | | 1983 | 135,718 | | 1982 | 130,909 | | 1981 | 126,357 | | 1980 | 122,053 | | 1979 | 117,901 | | 1978 | 113,892 | | 1977 | 110,004 | | 1976 | 106,210 | | 1975 | 102,486 | | 1974 | 98,824 | | 1973 | 95,236 | | 1972 | 91,707 | | 1971 | 87,931 | | 1970 | 82,239 | | 1969 | 76,689 | | 1968 | 71,348 | | 1967 | 66,225 | | 1966 | 61,330 | | 1965 | 56,670 | | 1964 | 52,251 | | 1963 | 48,077 | | 1962 | 44,169 | | 1961 | 40,507 | | 1960 | 37,041 |
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