Year | Value | 2022 | 75,510,765 | 2021 | 78,333,717 | 2020 | 81,102,035 | 2019 | 83,230,250 | 2018 | 84,305,880 | 2017 | 84,046,064 | 2016 | 82,827,279 | 2015 | 81,536,663 | 2014 | 80,225,639 | 2013 | 79,574,796 | 2012 | 78,986,115 | 2011 | 75,540,833 | 2010 | 69,794,440 | 2009 | 64,213,828 | 2008 | 58,818,946 | 2007 | 55,490,716 | 2006 | 55,795,729 | 2005 | 57,752,756 | 2004 | 59,549,673 | 2003 | 60,127,473 | 2002 | 59,197,644 | 2001 | 57,662,101 | 2000 | 55,758,200 | 1999 | 53,259,097 | 1998 | 50,468,489 | 1997 | 47,386,972 | 1996 | 44,405,135 | 1995 | 41,696,521 | 1994 | 39,154,141 | 1993 | 37,108,803 | 1992 | 35,428,717 | 1991 | 34,247,016 | 1990 | 33,563,280 | 1989 | 33,105,346 | 1988 | 32,822,887 | 1987 | 32,732,725 | 1986 | 32,572,896 | 1985 | 32,351,135 | 1984 | 32,222,875 | 1983 | 32,067,284 | 1982 | 31,639,974 | 1981 | 30,969,871 | 1980 | 30,282,449 | 1979 | 29,559,509 | 1978 | 28,702,750 | 1977 | 27,893,420 | 1976 | 27,171,882 | 1975 | 26,466,126 | 1974 | 25,865,007 | 1973 | 25,230,734 | 1972 | 24,503,091 | 1971 | 23,904,608 | 1970 | 23,329,525 | 1969 | 22,648,346 | 1968 | 21,984,399 | 1967 | 21,473,465 | 1966 | 21,051,187 | 1965 | 20,669,294 | 1964 | 20,515,952 | 1963 | 20,560,366 | 1962 | 20,463,654 | 1961 | 20,276,180 | 1960 | 20,218,259 |
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