Year | Value | 2022 | 320,490 | 2021 | 320,445 | 2020 | 327,145 | 2019 | 338,571 | 2018 | 354,195 | 2017 | 371,888 | 2016 | 391,621 | 2015 | 412,277 | 2014 | 428,225 | 2013 | 431,174 | 2012 | 422,653 | 2011 | 409,763 | 2010 | 392,385 | 2009 | 375,760 | 2008 | 367,665 | 2007 | 365,293 | 2006 | 359,400 | 2005 | 348,951 | 2004 | 336,394 | 2003 | 323,618 | 2002 | 311,892 | 2001 | 305,732 | 2000 | 306,910 | 1999 | 311,759 | 1998 | 319,224 | 1997 | 331,197 | 1996 | 348,438 | 1995 | 370,314 | 1994 | 396,924 | 1993 | 420,755 | 1992 | 432,426 | 1991 | 433,040 | 1990 | 427,026 | 1989 | 418,898 | 1988 | 409,989 | 1987 | 404,241 | 1986 | 396,772 | 1985 | 382,031 | 1984 | 371,659 | 1983 | 365,241 | 1982 | 357,947 | 1981 | 355,163 | 1980 | 356,968 | 1979 | 353,120 | 1978 | 344,522 | 1977 | 336,953 | 1976 | 329,397 | 1975 | 323,853 | 1974 | 322,014 | 1973 | 324,654 | 1972 | 329,926 | 1971 | 336,827 | 1970 | 344,946 | 1969 | 351,853 | 1968 | 356,285 | 1967 | 358,868 | 1966 | 360,975 | 1965 | 363,081 | 1964 | 362,574 | 1963 | 362,161 | 1962 | 363,480 | 1961 | 364,158 | 1960 | 361,031 |
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