Year | Value | 2022 | 68,259,113 | 2021 | 68,127,217 | 2020 | 69,552,670 | 2019 | 70,926,072 | 2018 | 71,258,624 | 2017 | 70,247,506 | 2016 | 68,644,891 | 2015 | 66,653,727 | 2014 | 64,024,950 | 2013 | 60,962,067 | 2012 | 57,452,815 | 2011 | 53,925,156 | 2010 | 50,477,973 | 2009 | 46,987,835 | 2008 | 43,962,891 | 2007 | 41,557,343 | 2006 | 40,003,081 | 2005 | 39,266,437 | 2004 | 39,121,980 | 2003 | 39,342,033 | 2002 | 39,622,846 | 2001 | 39,499,553 | 2000 | 39,050,673 | 1999 | 38,471,366 | 1998 | 37,726,589 | 1997 | 36,877,862 | 1996 | 35,974,908 | 1995 | 35,193,285 | 1994 | 34,637,183 | 1993 | 34,185,729 | 1992 | 33,697,887 | 1991 | 33,149,182 | 1990 | 32,538,654 | 1989 | 31,866,088 | 1988 | 31,019,667 | 1987 | 29,959,083 | 1986 | 28,899,345 | 1985 | 27,801,314 | 1984 | 26,623,252 | 1983 | 25,549,524 | 1982 | 24,664,933 | 1981 | 23,957,748 | 1980 | 23,489,535 | 1979 | 23,313,306 | 1978 | 23,250,685 | 1977 | 23,199,210 | 1976 | 23,125,820 | 1975 | 22,900,484 | 1974 | 22,512,527 | 1973 | 22,024,605 | 1972 | 21,559,806 | 1971 | 21,150,707 | 1970 | 20,767,968 | 1969 | 20,335,566 | 1968 | 19,905,071 | 1967 | 19,520,835 | 1966 | 19,083,856 | 1965 | 18,586,020 | 1964 | 18,000,118 | 1963 | 17,332,422 | 1962 | 16,663,299 | 1961 | 16,152,012 | 1960 | 15,832,605 |
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