Year | Value | 2022 | 26,527,781 | 2021 | 26,624,275 | 2020 | 26,685,285 | 2019 | 26,719,302 | 2018 | 26,738,072 | 2017 | 26,735,353 | 2016 | 26,712,794 | 2015 | 26,684,884 | 2014 | 26,647,612 | 2013 | 26,586,365 | 2012 | 26,503,272 | 2011 | 26,391,371 | 2010 | 26,246,301 | 2009 | 26,116,351 | 2008 | 25,990,739 | 2007 | 25,859,651 | 2006 | 25,702,387 | 2005 | 25,507,820 | 2004 | 25,272,288 | 2003 | 25,003,111 | 2002 | 24,699,275 | 2001 | 24,367,599 | 2000 | 24,023,849 | 1999 | 23,663,217 | 1998 | 23,305,515 | 1997 | 22,969,309 | 1996 | 22,642,312 | 1995 | 22,316,943 | 1994 | 21,988,157 | 1993 | 21,654,531 | 1992 | 21,324,303 | 1991 | 21,013,564 | 1990 | 20,722,976 | 1989 | 20,456,019 | 1988 | 20,207,292 | 1987 | 19,943,616 | 1986 | 19,639,152 | 1985 | 19,279,202 | 1984 | 18,865,119 | 1983 | 18,410,358 | 1982 | 17,934,067 | 1981 | 17,450,199 | 1980 | 16,956,894 | 1979 | 16,456,869 | 1978 | 15,960,440 | 1977 | 15,471,168 | 1976 | 14,999,068 | 1975 | 14,543,718 | 1974 | 14,095,878 | 1973 | 13,643,154 | 1972 | 13,177,421 | 1971 | 12,704,403 | 1970 | 12,229,925 | 1969 | 11,765,877 | 1968 | 11,338,964 | 1967 | 10,966,894 | 1966 | 10,643,195 | 1965 | 10,350,401 | 1964 | 10,074,141 | 1963 | 9,810,304 | 1962 | 9,555,113 | 1961 | 9,315,228 | 1960 | 9,103,040 |
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