Year | Value | 2022 | 58,900,177 | 2021 | 57,674,948 | 2020 | 56,113,505 | 2019 | 54,015,351 | 2018 | 51,657,342 | 2017 | 48,891,627 | 2016 | 45,935,363 | 2015 | 42,991,343 | 2014 | 40,138,666 | 2013 | 37,796,461 | 2012 | 35,904,454 | 2011 | 34,632,758 | 2010 | 33,869,028 | 2009 | 33,206,543 | 2008 | 32,600,468 | 2007 | 32,124,863 | 2006 | 31,651,467 | 2005 | 31,266,402 | 2004 | 31,082,443 | 2003 | 30,931,960 | 2002 | 30,562,262 | 2001 | 29,902,089 | 2000 | 29,089,908 | 1999 | 28,242,947 | 1998 | 27,357,692 | 1997 | 26,498,040 | 1996 | 25,703,276 | 1995 | 24,952,951 | 1994 | 24,286,721 | 1993 | 23,599,641 | 1992 | 22,863,571 | 1991 | 22,225,923 | 1990 | 21,621,829 | 1989 | 20,905,980 | 1988 | 20,141,397 | 1987 | 19,506,797 | 1986 | 18,986,331 | 1985 | 18,482,434 | 1984 | 18,082,780 | 1983 | 17,814,913 | 1982 | 17,472,575 | 1981 | 17,009,665 | 1980 | 16,538,572 | 1979 | 16,085,979 | 1978 | 15,631,586 | 1977 | 15,232,122 | 1976 | 14,914,624 | 1975 | 14,625,095 | 1974 | 14,282,556 | 1973 | 13,924,633 | 1972 | 13,619,428 | 1971 | 13,310,593 | 1970 | 12,915,662 | 1969 | 12,463,441 | 1968 | 11,973,731 | 1967 | 11,506,275 | 1966 | 11,072,765 | 1965 | 10,714,268 | 1964 | 10,517,710 | 1963 | 10,405,649 | 1962 | 10,266,735 | 1961 | 10,147,317 | 1960 | 10,105,633 |
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