Year | Value | 2022 | 32,792,847 | 2021 | 32,149,877 | 2020 | 31,449,202 | 2019 | 30,649,172 | 2018 | 29,798,403 | 2017 | 28,894,600 | 2016 | 27,940,270 | 2015 | 26,946,710 | 2014 | 25,926,744 | 2013 | 24,781,398 | 2012 | 23,564,216 | 2011 | 22,419,408 | 2010 | 21,341,120 | 2009 | 20,339,467 | 2008 | 19,547,375 | 2007 | 18,943,201 | 2006 | 18,388,480 | 2005 | 17,900,932 | 2004 | 17,486,428 | 2003 | 17,143,833 | 2002 | 16,847,552 | 2001 | 16,556,129 | 2000 | 16,243,463 | 1999 | 15,899,968 | 1998 | 15,520,136 | 1997 | 15,114,860 | 1996 | 14,717,207 | 1995 | 14,339,035 | 1994 | 13,963,248 | 1993 | 13,576,065 | 1992 | 13,185,228 | 1991 | 12,806,672 | 1990 | 12,448,843 | 1989 | 12,106,265 | 1988 | 11,777,489 | 1987 | 11,467,656 | 1986 | 11,176,701 | 1985 | 10,901,711 | 1984 | 10,642,790 | 1983 | 10,403,433 | 1982 | 10,180,581 | 1981 | 9,970,788 | 1980 | 9,765,144 | 1979 | 9,555,776 | 1978 | 9,343,437 | 1977 | 9,131,508 | 1976 | 8,929,319 | 1975 | 8,740,976 | 1974 | 8,567,561 | 1973 | 8,413,469 | 1972 | 8,268,334 | 1971 | 8,115,940 | 1970 | 7,933,003 | 1969 | 7,706,843 | 1968 | 7,436,803 | 1967 | 7,146,689 | 1966 | 6,886,731 | 1965 | 6,686,397 | 1964 | 6,543,180 | 1963 | 6,463,808 | 1962 | 6,428,535 | 1961 | 6,365,045 | 1960 | 6,225,607 |
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