Year | Value | 2022 | 25,806,910 | 2021 | 25,656,255 | 2020 | 25,477,071 | 2019 | 25,274,747 | 2018 | 25,061,253 | 2017 | 24,831,776 | 2016 | 24,565,799 | 2015 | 24,259,078 | 2014 | 23,923,931 | 2013 | 23,568,165 | 2012 | 23,188,505 | 2011 | 22,806,412 | 2010 | 22,433,555 | 2009 | 22,074,956 | 2008 | 21,718,518 | 2007 | 21,382,050 | 2006 | 21,056,101 | 2005 | 20,741,320 | 2004 | 20,431,325 | 2003 | 20,116,910 | 2002 | 19,811,544 | 2001 | 19,531,677 | 2000 | 19,280,823 | 1999 | 19,060,329 | 1998 | 18,841,863 | 1997 | 18,585,344 | 1996 | 18,276,015 | 1995 | 17,913,147 | 1994 | 17,500,182 | 1993 | 17,049,635 | 1992 | 16,583,594 | 1991 | 16,117,117 | 1990 | 15,657,954 | 1989 | 15,216,895 | 1988 | 14,786,495 | 1987 | 14,355,046 | 1986 | 13,929,049 | 1985 | 13,508,121 | 1984 | 13,086,682 | 1983 | 12,648,459 | 1982 | 12,194,323 | 1981 | 11,741,111 | 1980 | 11,306,099 | 1979 | 10,905,238 | 1978 | 10,548,531 | 1977 | 10,236,144 | 1976 | 9,964,384 | 1975 | 9,712,952 | 1974 | 9,462,697 | 1973 | 9,217,340 | 1972 | 8,972,823 | 1971 | 8,729,212 | 1970 | 8,496,866 | 1969 | 8,279,577 | 1968 | 8,078,713 | 1967 | 7,899,024 | 1966 | 7,736,822 | 1965 | 7,591,543 | 1964 | 7,463,641 | 1963 | 7,345,335 | 1962 | 7,226,923 | 1961 | 7,103,266 | 1960 | 6,973,801 |
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