| Year | Value | | 2022 | 410,838 | | 2021 | 400,013 | | 2020 | 388,878 | | 2019 | 377,668 | | 2018 | 366,346 | | 2017 | 354,511 | | 2016 | 342,434 | | 2015 | 330,533 | | 2014 | 318,700 | | 2013 | 306,938 | | 2012 | 295,887 | | 2011 | 286,165 | | 2010 | 278,994 | | 2009 | 273,086 | | 2008 | 267,222 | | 2007 | 262,021 | | 2006 | 256,949 | | 2005 | 252,065 | | 2004 | 247,559 | | 2003 | 243,198 | | 2002 | 238,727 | | 2001 | 234,283 | | 2000 | 229,804 | | 1999 | 225,258 | | 1998 | 220,865 | | 1997 | 216,575 | | 1996 | 212,345 | | 1995 | 208,205 | | 1994 | 203,877 | | 1993 | 199,339 | | 1992 | 194,810 | | 1991 | 190,111 | | 1990 | 185,241 | | 1989 | 180,297 | | 1988 | 174,119 | | 1987 | 167,867 | | 1986 | 163,281 | | 1985 | 159,628 | | 1984 | 156,709 | | 1983 | 155,590 | | 1982 | 155,008 | | 1981 | 153,242 | | 1980 | 151,102 | | 1979 | 149,041 | | 1978 | 147,221 | | 1977 | 145,548 | | 1976 | 143,719 | | 1975 | 141,471 | | 1974 | 138,764 | | 1973 | 135,603 | | 1972 | 132,174 | | 1971 | 128,891 | | 1970 | 125,997 | | 1969 | 123,420 | | 1968 | 121,085 | | 1967 | 119,060 | | 1966 | 117,359 | | 1965 | 115,972 | | 1964 | 114,894 | | 1963 | 114,190 | | 1962 | 113,695 | | 1961 | 113,168 | | 1960 | 112,559 |
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