| Year | Value | | 2022 | 797,083 | | 2021 | 753,720 | | 2020 | 711,640 | | 2019 | 665,544 | | 2018 | 623,904 | | 2017 | 589,463 | | 2016 | 563,301 | | 2015 | 543,195 | | 2014 | 529,731 | | 2013 | 521,271 | | 2012 | 513,196 | | 2011 | 503,670 | | 2010 | 491,478 | | 2009 | 476,961 | | 2008 | 461,077 | | 2007 | 444,737 | | 2006 | 429,003 | | 2005 | 415,409 | | 2004 | 403,946 | | 2003 | 392,901 | | 2002 | 381,689 | | 2001 | 370,287 | | 2000 | 358,122 | | 1999 | 344,739 | | 1998 | 331,141 | | 1997 | 318,420 | | 1996 | 306,542 | | 1995 | 296,327 | | 1994 | 288,624 | | 1993 | 282,355 | | 1992 | 275,940 | | 1991 | 268,853 | | 1990 | 262,368 | | 1989 | 259,274 | | 1988 | 259,477 | | 1987 | 260,814 | | 1986 | 262,080 | | 1985 | 261,368 | | 1984 | 256,895 | | 1983 | 248,503 | | 1982 | 237,493 | | 1981 | 225,880 | | 1980 | 215,595 | | 1979 | 207,337 | | 1978 | 200,302 | | 1977 | 192,962 | | 1976 | 184,177 | | 1975 | 173,906 | | 1974 | 163,559 | | 1973 | 154,187 | | 1972 | 145,782 | | 1971 | 138,497 | | 1970 | 132,438 | | 1969 | 126,779 | | 1968 | 120,380 | | 1967 | 113,554 | | 1966 | 106,944 | | 1965 | 100,986 | | 1964 | 96,854 | | 1963 | 94,979 | | 1962 | 93,949 | | 1961 | 92,699 | | 1960 | 91,384 |
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