Year | Value | 2022 | 32,973,062 | 2021 | 32,046,931 | 2020 | 31,162,976 | 2019 | 30,309,698 | 2018 | 29,514,898 | 2017 | 28,760,872 | 2016 | 28,009,209 | 2015 | 27,257,949 | 2014 | 26,495,439 | 2013 | 25,700,073 | 2012 | 24,895,366 | 2011 | 24,087,085 | 2010 | 23,288,323 | 2009 | 22,502,710 | 2008 | 21,711,373 | 2007 | 20,994,347 | 2006 | 20,341,233 | 2005 | 19,652,449 | 2004 | 18,961,316 | 2003 | 18,299,077 | 2002 | 17,639,526 | 2001 | 17,011,752 | 2000 | 16,448,301 | 1999 | 15,916,520 | 1998 | 15,404,035 | 1997 | 14,941,674 | 1996 | 14,527,183 | 1995 | 14,098,467 | 1994 | 13,575,784 | 1993 | 13,060,136 | 1992 | 12,616,046 | 1991 | 12,231,702 | 1990 | 11,928,097 | 1989 | 11,635,378 | 1988 | 11,358,588 | 1987 | 11,102,851 | 1986 | 10,828,473 | 1985 | 10,540,268 | 1984 | 10,224,325 | 1983 | 9,915,148 | 1982 | 9,662,378 | 1981 | 9,476,219 | 1980 | 9,323,870 | 1979 | 9,157,832 | 1978 | 8,966,183 | 1977 | 8,740,294 | 1976 | 8,507,896 | 1975 | 8,275,146 | 1974 | 8,046,116 | 1973 | 7,841,250 | 1972 | 7,669,260 | 1971 | 7,514,332 | 1970 | 7,358,167 | 1969 | 7,202,895 | 1968 | 7,050,470 | 1967 | 6,900,561 | 1966 | 6,757,122 | 1965 | 6,621,278 | 1964 | 6,490,726 | 1963 | 6,362,829 | 1962 | 6,238,114 | 1961 | 6,117,212 | 1960 | 6,002,132 |
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