Year | Value | 2022 | 518,361 | 2021 | 530,915 | 2020 | 541,891 | 2019 | 550,495 | 2018 | 555,955 | 2017 | 557,424 | 2016 | 554,618 | 2015 | 546,742 | 2014 | 533,746 | 2013 | 517,988 | 2012 | 501,176 | 2011 | 485,470 | 2010 | 472,383 | 2009 | 461,777 | 2008 | 452,431 | 2007 | 443,016 | 2006 | 433,918 | 2005 | 425,912 | 2004 | 421,334 | 2003 | 421,628 | 2002 | 426,366 | 2001 | 435,286 | 2000 | 447,533 | 1999 | 463,106 | 1998 | 480,495 | 1997 | 497,640 | 1996 | 513,769 | 1995 | 527,892 | 1994 | 538,134 | 1993 | 545,938 | 1992 | 554,016 | 1991 | 562,417 | 1990 | 570,102 | 1989 | 576,355 | 1988 | 579,088 | 1987 | 576,667 | 1986 | 570,427 | 1985 | 561,539 | 1984 | 552,979 | 1983 | 546,254 | 1982 | 541,052 | 1981 | 537,134 | 1980 | 533,871 | 1979 | 529,441 | 1978 | 521,969 | 1977 | 511,088 | 1976 | 497,797 | 1975 | 485,357 | 1974 | 475,356 | 1973 | 467,395 | 1972 | 461,275 | 1971 | 456,335 | 1970 | 451,333 | 1969 | 445,303 | 1968 | 438,298 | 1967 | 430,870 | 1966 | 423,358 | 1965 | 415,232 | 1964 | 407,197 | 1963 | 400,003 | 1962 | 393,094 | 1961 | 386,528 | 1960 | 379,536 |
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