Year | Value | 2022 | 513,702 | 2021 | 522,052 | 2020 | 529,979 | 2019 | 533,112 | 2018 | 529,683 | 2017 | 523,283 | 2016 | 518,288 | 2015 | 515,851 | 2014 | 519,087 | 2013 | 528,327 | 2012 | 536,137 | 2011 | 540,456 | 2010 | 543,051 | 2009 | 541,340 | 2008 | 538,564 | 2007 | 541,686 | 2006 | 545,280 | 2005 | 546,598 | 2004 | 551,617 | 2003 | 557,902 | 2002 | 564,253 | 2001 | 576,319 | 2000 | 586,272 | 1999 | 590,386 | 1998 | 598,045 | 1997 | 610,352 | 1996 | 626,930 | 1995 | 649,480 | 1994 | 690,584 | 1993 | 744,028 | 1992 | 795,880 | 1991 | 849,206 | 1990 | 886,581 | 1989 | 887,892 | 1988 | 868,683 | 1987 | 853,672 | 1986 | 853,799 | 1985 | 870,311 | 1984 | 896,321 | 1983 | 928,289 | 1982 | 962,623 | 1981 | 990,234 | 1980 | 1,009,086 | 1979 | 1,025,231 | 1978 | 1,029,776 | 1977 | 1,020,815 | 1976 | 1,009,959 | 1975 | 997,666 | 1974 | 988,591 | 1973 | 991,451 | 1972 | 990,986 | 1971 | 945,326 | 1970 | 869,269 | 1969 | 801,530 | 1968 | 749,597 | 1967 | 718,427 | 1966 | 715,814 | 1965 | 741,714 | 1964 | 780,573 | 1963 | 822,773 | 1962 | 865,235 | 1961 | 905,095 | 1960 | 935,751 |
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