| Year | Value | | 2022 | 358,579 | | 2021 | 353,791 | | 2020 | 348,358 | | 2019 | 342,637 | | 2018 | 337,302 | | 2017 | 332,049 | | 2016 | 326,526 | | 2015 | 321,037 | | 2014 | 315,583 | | 2013 | 310,012 | | 2012 | 305,003 | | 2011 | 300,959 | | 2010 | 297,214 | | 2009 | 293,527 | | 2008 | 289,804 | | 2007 | 285,472 | | 2006 | 280,322 | | 2005 | 274,745 | | 2004 | 268,784 | | 2003 | 262,207 | | 2002 | 255,063 | | 2001 | 246,698 | | 2000 | 237,179 | | 1999 | 227,325 | | 1998 | 217,277 | | 1997 | 207,144 | | 1996 | 197,034 | | 1995 | 187,119 | | 1994 | 177,524 | | 1993 | 169,533 | | 1992 | 163,059 | | 1991 | 156,676 | | 1990 | 150,406 | | 1989 | 144,374 | | 1988 | 138,299 | | 1987 | 132,627 | | 1986 | 128,238 | | 1985 | 125,078 | | 1984 | 122,990 | | 1983 | 121,871 | | 1982 | 121,203 | | 1981 | 120,301 | | 1980 | 118,715 | | 1979 | 116,197 | | 1978 | 112,758 | | 1977 | 108,754 | | 1976 | 104,638 | | 1975 | 100,686 | | 1974 | 96,796 | | 1973 | 92,832 | | 1972 | 88,928 | | 1971 | 85,245 | | 1970 | 82,163 | | 1969 | 79,606 | | 1968 | 77,217 | | 1967 | 75,017 | | 1966 | 72,960 | | 1965 | 71,130 | | 1964 | 69,407 | | 1963 | 67,689 | | 1962 | 66,081 | | 1961 | 64,539 | | 1960 | 63,039 |
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