Year | Value | 2022 | 38,358,435 | 2021 | 37,902,724 | 2020 | 37,432,361 | 2019 | 36,936,235 | 2018 | 36,450,926 | 2017 | 35,946,533 | 2016 | 35,391,766 | 2015 | 34,830,333 | 2014 | 34,272,609 | 2013 | 33,686,548 | 2012 | 33,067,204 | 2011 | 32,415,926 | 2010 | 31,731,712 | 2009 | 31,006,755 | 2008 | 30,252,283 | 2007 | 29,508,944 | 2006 | 28,785,081 | 2005 | 28,074,038 | 2004 | 27,377,696 | 2003 | 26,693,585 | 2002 | 26,030,130 | 2001 | 25,364,272 | 2000 | 24,714,605 | 1999 | 24,106,946 | 1998 | 23,536,587 | 1997 | 23,003,985 | 1996 | 22,485,008 | 1995 | 21,969,554 | 1994 | 21,442,214 | 1993 | 20,911,442 | 1992 | 20,379,928 | 1991 | 19,841,850 | 1990 | 19,283,052 | 1989 | 18,697,174 | 1988 | 18,083,114 | 1987 | 17,482,280 | 1986 | 16,898,849 | 1985 | 16,324,448 | 1984 | 15,756,606 | 1983 | 15,200,211 | 1982 | 14,663,958 | 1981 | 14,153,755 | 1980 | 13,664,684 | 1979 | 13,214,882 | 1978 | 12,862,782 | 1977 | 12,520,191 | 1976 | 12,198,039 | 1975 | 11,888,901 | 1974 | 11,573,393 | 1973 | 11,254,039 | 1972 | 10,932,633 | 1971 | 10,616,041 | 1970 | 10,291,933 | 1969 | 9,952,155 | 1968 | 9,602,905 | 1967 | 9,261,652 | 1966 | 8,929,977 | 1965 | 8,606,856 | 1964 | 8,294,825 | 1963 | 7,998,119 | 1962 | 7,713,393 | 1961 | 7,438,679 | 1960 | 7,180,774 |
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