Year | Value | 2022 | 531,113 | 2021 | 518,536 | 2020 | 515,332 | 2019 | 504,062 | 2018 | 484,630 | 2017 | 467,999 | 2016 | 455,356 | 2015 | 445,053 | 2014 | 434,558 | 2013 | 425,967 | 2012 | 420,028 | 2011 | 416,268 | 2010 | 414,508 | 2009 | 412,477 | 2008 | 409,379 | 2007 | 406,724 | 2006 | 405,308 | 2005 | 403,834 | 2004 | 401,268 | 2003 | 398,582 | 2002 | 395,969 | 2001 | 393,028 | 2000 | 390,087 | 1999 | 387,578 | 1998 | 385,287 | 1997 | 382,791 | 1996 | 379,905 | 1995 | 377,419 | 1994 | 374,797 | 1993 | 371,308 | 1992 | 367,618 | 1991 | 363,845 | 1990 | 354,170 | 1989 | 350,722 | 1988 | 347,325 | 1987 | 344,485 | 1986 | 342,121 | 1985 | 336,452 | 1984 | 330,593 | 1983 | 330,524 | 1982 | 325,898 | 1981 | 318,982 | 1980 | 316,645 | 1979 | 313,342 | 1978 | 310,182 | 1977 | 306,970 | 1976 | 305,774 | 1975 | 304,222 | 1974 | 301,996 | 1973 | 302,200 | 1972 | 302,450 | 1971 | 302,700 | 1970 | 302,650 | 1969 | 304,300 | 1968 | 307,900 | 1967 | 311,550 | 1966 | 315,200 | 1965 | 318,800 | 1964 | 321,250 | 1963 | 322,550 | 1962 | 323,900 | 1961 | 325,250 | 1960 | 326,550 |
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