Year | Value | 2022 | 517,116 | 2021 | 496,509 | 2020 | 474,724 | 2019 | 451,924 | 2018 | 431,089 | 2017 | 411,602 | 2016 | 393,498 | 2015 | 378,251 | 2014 | 362,067 | 2013 | 345,025 | 2012 | 330,302 | 2011 | 314,367 | 2010 | 301,122 | 2009 | 291,732 | 2008 | 280,594 | 2007 | 275,737 | 2006 | 271,916 | 2005 | 260,109 | 2004 | 251,354 | 2003 | 243,561 | 2002 | 228,697 | 2001 | 219,146 | 2000 | 223,984 | 1999 | 226,770 | 1998 | 222,825 | 1997 | 218,430 | 1996 | 212,381 | 1995 | 205,566 | 1994 | 195,171 | 1993 | 178,591 | 1992 | 155,582 | 1991 | 140,753 | 1990 | 142,286 | 1989 | 143,966 | 1988 | 141,731 | 1987 | 142,512 | 1986 | 146,093 | 1985 | 149,425 | 1984 | 148,381 | 1983 | 146,761 | 1982 | 151,435 | 1981 | 170,342 | 1980 | 193,115 | 1979 | 202,769 | 1978 | 203,228 | 1977 | 199,730 | 1976 | 195,854 | 1975 | 192,060 | 1974 | 188,059 | 1973 | 184,031 | 1972 | 180,223 | 1971 | 176,699 | 1970 | 173,219 | 1969 | 169,790 | 1968 | 166,606 | 1967 | 163,548 | 1966 | 160,569 | 1965 | 157,606 | 1964 | 154,670 | 1963 | 151,791 | 1962 | 149,059 | 1961 | 146,792 | 1960 | 145,186 |
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