Year | Value | 2022 | 66,918,496 | 2021 | 67,610,838 | 2020 | 68,627,607 | 2019 | 69,997,109 | 2018 | 71,775,796 | 2017 | 73,802,213 | 2016 | 76,242,954 | 2015 | 80,048,786 | 2014 | 84,582,370 | 2013 | 88,402,916 | 2012 | 91,920,142 | 2011 | 94,700,249 | 2010 | 95,058,119 | 2009 | 93,653,056 | 2008 | 91,975,695 | 2007 | 90,358,415 | 2006 | 88,805,446 | 2005 | 87,290,196 | 2004 | 85,989,633 | 2003 | 84,657,852 | 2002 | 82,616,803 | 2001 | 80,709,571 | 2000 | 80,025,658 | 1999 | 80,536,601 | 1998 | 82,399,724 | 1997 | 85,083,628 | 1996 | 87,806,125 | 1995 | 90,508,805 | 1994 | 92,603,575 | 1993 | 93,707,135 | 1992 | 93,564,522 | 1991 | 92,556,248 | 1990 | 91,662,560 | 1989 | 90,895,716 | 1988 | 90,802,091 | 1987 | 90,755,631 | 1986 | 87,835,784 | 1985 | 82,522,066 | 1984 | 77,251,441 | 1983 | 72,047,124 | 1982 | 68,843,862 | 1981 | 69,252,402 | 1980 | 71,377,488 | 1979 | 73,424,640 | 1978 | 74,169,825 | 1977 | 73,322,584 | 1976 | 71,866,631 | 1975 | 69,959,089 | 1974 | 67,379,360 | 1973 | 64,336,003 | 1972 | 60,726,439 | 1971 | 57,016,567 | 1970 | 53,223,922 | 1969 | 49,298,568 | 1968 | 45,966,703 | 1967 | 43,354,906 | 1966 | 41,736,449 | 1965 | 41,147,169 | 1964 | 41,390,128 | 1963 | 42,179,329 | 1962 | 43,035,890 | 1961 | 43,542,903 | 1960 | 43,888,456 |
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