Year | Value | 2022 | 34,806,096 | 2021 | 34,794,010 | 2020 | 34,769,467 | 2019 | 34,723,388 | 2018 | 34,671,370 | 2017 | 34,594,141 | 2016 | 34,486,044 | 2015 | 34,365,474 | 2014 | 34,231,954 | 2013 | 34,073,118 | 2012 | 33,893,784 | 2011 | 33,702,397 | 2010 | 33,511,372 | 2009 | 33,307,128 | 2008 | 33,082,657 | 2007 | 32,849,413 | 2006 | 32,612,264 | 2005 | 32,378,837 | 2004 | 32,138,214 | 2003 | 31,884,756 | 2002 | 31,620,770 | 2001 | 31,347,349 | 2000 | 31,072,431 | 1999 | 30,791,112 | 1998 | 30,485,611 | 1997 | 30,156,258 | 1996 | 29,818,547 | 1995 | 29,472,127 | 1994 | 29,115,033 | 1993 | 28,753,042 | 1992 | 28,386,917 | 1991 | 28,009,783 | 1990 | 27,614,883 | 1989 | 27,190,029 | 1988 | 26,738,155 | 1987 | 26,275,616 | 1986 | 25,810,188 | 1985 | 25,340,440 | 1984 | 24,865,574 | 1983 | 24,386,866 | 1982 | 23,906,506 | 1981 | 23,425,833 | 1980 | 22,937,469 | 1979 | 22,454,279 | 1978 | 21,981,731 | 1977 | 21,502,695 | 1976 | 21,022,782 | 1975 | 20,535,791 | 1974 | 20,030,891 | 1973 | 19,514,805 | 1972 | 18,992,340 | 1971 | 18,475,306 | 1970 | 17,962,802 | 1969 | 17,455,755 | 1968 | 16,960,085 | 1967 | 16,470,407 | 1966 | 15,987,417 | 1965 | 15,510,808 | 1964 | 15,042,779 | 1963 | 14,588,805 | 1962 | 14,149,320 | 1961 | 13,725,683 | 1960 | 13,322,093 |
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