Year | Value | 2022 | 488,653 | 2021 | 496,135 | 2020 | 503,523 | 2019 | 506,169 | 2018 | 502,425 | 2017 | 495,748 | 2016 | 490,499 | 2015 | 488,894 | 2014 | 493,602 | 2013 | 503,826 | 2012 | 512,892 | 2011 | 518,726 | 2010 | 521,628 | 2009 | 519,194 | 2008 | 515,752 | 2007 | 517,848 | 2006 | 520,796 | 2005 | 522,753 | 2004 | 529,325 | 2003 | 537,961 | 2002 | 546,826 | 2001 | 559,822 | 2000 | 568,971 | 1999 | 571,742 | 1998 | 577,797 | 1997 | 588,542 | 1996 | 604,321 | 1995 | 627,330 | 1994 | 669,817 | 1993 | 725,299 | 1992 | 779,598 | 1991 | 833,564 | 1990 | 869,354 | 1989 | 869,218 | 1988 | 848,677 | 1987 | 832,113 | 1986 | 830,123 | 1985 | 844,184 | 1984 | 867,692 | 1983 | 897,233 | 1982 | 929,111 | 1981 | 955,623 | 1980 | 973,777 | 1979 | 988,440 | 1978 | 993,287 | 1977 | 987,115 | 1976 | 975,431 | 1975 | 960,162 | 1974 | 951,014 | 1973 | 954,433 | 1972 | 955,124 | 1971 | 911,233 | 1970 | 837,502 | 1969 | 771,264 | 1968 | 719,295 | 1967 | 687,578 | 1966 | 684,674 | 1965 | 709,375 | 1964 | 746,415 | 1963 | 786,861 | 1962 | 827,369 | 1961 | 865,305 | 1960 | 895,170 |
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