Year | Value | 2022 | 332,131 | 2021 | 331,697 | 2020 | 333,223 | 2019 | 334,154 | 2018 | 333,439 | 2017 | 332,075 | 2016 | 330,014 | 2015 | 327,629 | 2014 | 327,196 | 2013 | 333,011 | 2012 | 345,904 | 2011 | 362,270 | 2010 | 379,694 | 2009 | 395,280 | 2008 | 406,670 | 2007 | 413,415 | 2006 | 414,928 | 2005 | 412,757 | 2004 | 409,316 | 2003 | 402,701 | 2002 | 391,534 | 2001 | 378,641 | 2000 | 365,593 | 1999 | 354,295 | 1998 | 346,407 | 1997 | 338,312 | 1996 | 325,453 | 1995 | 304,984 | 1994 | 277,921 | 1993 | 249,559 | 1992 | 228,770 | 1991 | 224,528 | 1990 | 238,760 | 1989 | 265,644 | 1988 | 299,508 | 1987 | 333,116 | 1986 | 356,660 | 1985 | 367,684 | 1984 | 366,855 | 1983 | 358,945 | 1982 | 351,188 | 1981 | 347,040 | 1980 | 348,924 | 1979 | 358,197 | 1978 | 369,460 | 1977 | 377,141 | 1976 | 380,694 | 1975 | 380,442 | 1974 | 376,067 | 1973 | 367,403 | 1972 | 353,559 | 1971 | 333,921 | 1970 | 309,362 | 1969 | 281,808 | 1968 | 253,709 | 1967 | 228,598 | 1966 | 210,238 | 1965 | 200,781 | 1964 | 199,988 | 1963 | 207,046 | 1962 | 219,570 | 1961 | 233,272 | 1960 | 245,554 |
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