Year | Value | 2022 | 20,100,026 | 2021 | 19,973,697 | 2020 | 19,707,016 | 2019 | 19,103,328 | 2018 | 18,369,508 | 2017 | 17,604,061 | 2016 | 16,859,912 | 2015 | 16,163,127 | 2014 | 15,497,189 | 2013 | 14,856,436 | 2012 | 14,262,063 | 2011 | 13,712,102 | 2010 | 13,196,048 | 2009 | 12,707,697 | 2008 | 12,228,875 | 2007 | 11,763,730 | 2006 | 11,302,738 | 2005 | 10,849,829 | 2004 | 10,416,669 | 2003 | 10,006,432 | 2002 | 9,616,120 | 2001 | 9,242,775 | 2000 | 8,886,021 | 1999 | 8,539,518 | 1998 | 8,209,388 | 1997 | 7,899,591 | 1996 | 7,610,248 | 1995 | 7,337,222 | 1994 | 7,072,496 | 1993 | 6,814,818 | 1992 | 6,565,967 | 1991 | 6,320,111 | 1990 | 6,075,458 | 1989 | 5,832,285 | 1988 | 5,587,457 | 1987 | 5,343,345 | 1986 | 5,110,760 | 1985 | 4,895,020 | 1984 | 4,699,314 | 1983 | 4,525,209 | 1982 | 4,364,767 | 1981 | 4,208,846 | 1980 | 4,047,802 | 1979 | 3,866,102 | 1978 | 3,665,113 | 1977 | 3,461,761 | 1976 | 3,271,781 | 1975 | 3,104,103 | 1974 | 2,956,918 | 1973 | 2,837,388 | 1972 | 2,744,993 | 1971 | 2,667,850 | 1970 | 2,592,936 | 1969 | 2,505,484 | 1968 | 2,397,609 | 1967 | 2,277,198 | 1966 | 2,162,553 | 1965 | 2,065,410 | 1964 | 1,985,307 | 1963 | 1,928,309 | 1962 | 1,897,467 | 1961 | 1,881,843 | 1960 | 1,869,932 |
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