Year | Value | 2022 | 4,211,076 | 2021 | 4,092,180 | 2020 | 3,973,287 | 2019 | 3,858,254 | 2018 | 3,747,983 | 2017 | 3,637,892 | 2016 | 3,528,344 | 2015 | 3,420,840 | 2014 | 3,315,806 | 2013 | 3,212,182 | 2012 | 3,110,665 | 2011 | 3,011,402 | 2010 | 2,914,935 | 2009 | 2,821,239 | 2008 | 2,728,958 | 2007 | 2,662,452 | 2006 | 2,600,268 | 2005 | 2,539,900 | 2004 | 2,480,269 | 2003 | 2,421,609 | 2002 | 2,364,127 | 2001 | 2,307,612 | 2000 | 2,252,408 | 1999 | 2,197,746 | 1998 | 2,141,859 | 1997 | 2,064,541 | 1996 | 1,977,421 | 1995 | 1,890,279 | 1994 | 1,802,436 | 1993 | 1,699,098 | 1992 | 1,577,655 | 1991 | 1,471,035 | 1990 | 1,385,274 | 1989 | 1,303,724 | 1988 | 1,230,791 | 1987 | 1,161,167 | 1986 | 1,091,125 | 1985 | 1,027,563 | 1984 | 972,065 | 1983 | 917,021 | 1982 | 862,613 | 1981 | 810,961 | 1980 | 613,573 | 1979 | 363,048 | 1978 | 332,515 | 1977 | 313,245 | 1976 | 304,003 | 1975 | 301,209 | 1974 | 2,008,691 | 1973 | 1,731,112 | 1972 | 1,476,269 | 1971 | 1,253,351 | 1970 | 1,071,351 | 1969 | 973,835 | 1968 | 870,974 | 1967 | 777,471 | 1966 | 692,915 | 1965 | 668,290 | 1964 | 644,075 | 1963 | 620,759 | 1962 | 598,162 | 1961 | 583,063 | 1960 | 569,961 |
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