| Year | Value | | 2022 | 415,468 | | 2021 | 403,463 | | 2020 | 392,678 | | 2019 | 384,525 | | 2018 | 379,084 | | 2017 | 376,092 | | 2016 | 374,777 | | 2015 | 373,868 | | 2014 | 371,933 | | 2013 | 368,544 | | 2012 | 363,770 | | 2011 | 357,175 | | 2010 | 348,998 | | 2009 | 340,053 | | 2008 | 330,260 | | 2007 | 319,472 | | 2006 | 308,141 | | 2005 | 296,118 | | 2004 | 282,667 | | 2003 | 268,274 | | 2002 | 253,874 | | 2001 | 239,643 | | 2000 | 226,329 | | 1999 | 214,429 | | 1998 | 203,244 | | 1997 | 193,592 | | 1996 | 186,520 | | 1995 | 181,204 | | 1994 | 177,155 | | 1993 | 174,521 | | 1992 | 171,923 | | 1991 | 168,057 | | 1990 | 163,468 | | 1989 | 158,536 | | 1988 | 153,284 | | 1987 | 148,117 | | 1986 | 143,697 | | 1985 | 140,192 | | 1984 | 137,579 | | 1983 | 135,639 | | 1982 | 133,814 | | 1981 | 131,479 | | 1980 | 128,273 | | 1979 | 124,464 | | 1978 | 120,216 | | 1977 | 115,645 | | 1976 | 111,310 | | 1975 | 107,825 | | 1974 | 104,973 | | 1973 | 102,290 | | 1972 | 99,778 | | 1971 | 97,299 | | 1970 | 94,793 | | 1969 | 92,313 | | 1968 | 89,862 | | 1967 | 87,531 | | 1966 | 85,525 | | 1965 | 84,412 | | 1964 | 84,253 | | 1963 | 84,506 | | 1962 | 84,937 | | 1961 | 85,265 | | 1960 | 85,311 |
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