| Year | Value | | 2022 | 1,408,082 | | 2021 | 1,376,273 | | 2020 | 1,364,489 | | 2019 | 1,356,474 | | 2018 | 1,343,073 | | 2017 | 1,335,743 | | 2016 | 1,327,203 | | 2015 | 1,316,921 | | 2014 | 1,308,008 | | 2013 | 1,300,142 | | 2012 | 1,299,452 | | 2011 | 1,299,617 | | 2010 | 1,297,415 | | 2009 | 1,296,823 | | 2008 | 1,291,531 | | 2007 | 1,278,937 | | 2006 | 1,260,169 | | 2005 | 1,233,687 | | 2004 | 1,205,578 | | 2003 | 1,180,904 | | 2002 | 1,158,522 | | 2001 | 1,138,084 | | 2000 | 1,117,016 | | 1999 | 1,093,384 | | 1998 | 1,066,555 | | 1997 | 1,037,659 | | 1996 | 1,009,281 | | 1995 | 982,066 | | 1994 | 957,076 | | 1993 | 932,922 | | 1992 | 911,519 | | 1991 | 890,344 | | 1990 | 867,602 | | 1989 | 847,278 | | 1988 | 827,209 | | 1987 | 807,187 | | 1986 | 786,409 | | 1985 | 767,311 | | 1984 | 751,159 | | 1983 | 736,819 | | 1982 | 724,030 | | 1981 | 712,583 | | 1980 | 702,107 | | 1979 | 690,592 | | 1978 | 677,521 | | 1977 | 663,149 | | 1976 | 647,262 | | 1975 | 630,243 | | 1974 | 611,855 | | 1973 | 592,057 | | 1972 | 570,837 | | 1971 | 550,760 | | 1970 | 532,953 | | 1969 | 520,259 | | 1968 | 509,974 | | 1967 | 497,632 | | 1966 | 485,697 | | 1965 | 473,417 | | 1964 | 457,447 | | 1963 | 439,813 | | 1962 | 424,676 | | 1961 | 412,975 | | 1960 | 405,561 |
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