Year | Value | 2022 | 26,886,668 | 2021 | 27,009,056 | 2020 | 27,145,293 | 2019 | 27,285,647 | 2018 | 27,447,335 | 2017 | 27,590,159 | 2016 | 27,661,945 | 2015 | 27,702,928 | 2014 | 27,740,411 | 2013 | 27,760,600 | 2012 | 27,763,237 | 2011 | 27,754,137 | 2010 | 27,718,165 | 2009 | 27,690,441 | 2008 | 27,656,671 | 2007 | 27,601,468 | 2006 | 27,510,926 | 2005 | 27,385,936 | 2004 | 27,234,891 | 2003 | 27,072,338 | 2002 | 26,897,279 | 2001 | 26,691,370 | 2000 | 26,454,192 | 1999 | 26,169,696 | 1998 | 25,843,595 | 1997 | 25,498,027 | 1996 | 25,146,991 | 1995 | 24,796,190 | 1994 | 24,434,955 | 1993 | 24,082,556 | 1992 | 23,741,103 | 1991 | 23,392,416 | 1990 | 23,024,074 | 1989 | 22,642,597 | 1988 | 22,266,404 | 1987 | 21,907,864 | 1986 | 21,588,312 | 1985 | 21,309,991 | 1984 | 21,058,761 | 1983 | 20,810,505 | 1982 | 20,537,467 | 1981 | 20,214,132 | 1980 | 19,821,742 | 1979 | 19,366,870 | 1978 | 18,878,073 | 1977 | 18,377,708 | 1976 | 17,888,713 | 1975 | 17,413,833 | 1974 | 16,943,457 | 1973 | 16,477,008 | 1972 | 16,013,653 | 1971 | 15,559,578 | 1970 | 15,101,797 | 1969 | 14,641,391 | 1968 | 14,177,173 | 1967 | 13,691,880 | 1966 | 13,191,371 | 1965 | 12,695,165 | 1964 | 12,217,956 | 1963 | 11,780,697 | 1962 | 11,403,261 | 1961 | 11,078,906 | 1960 | 10,782,761 |
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