Year | Value | 2022 | 40,831,689 | 2021 | 39,690,866 | 2020 | 38,572,251 | 2019 | 37,455,800 | 2018 | 36,387,525 | 2017 | 35,354,005 | 2016 | 34,310,287 | 2015 | 33,316,906 | 2014 | 32,387,902 | 2013 | 31,494,446 | 2012 | 30,654,235 | 2011 | 29,818,814 | 2010 | 28,995,116 | 2009 | 28,161,021 | 2008 | 27,284,523 | 2007 | 26,470,954 | 2006 | 25,698,558 | 2005 | 24,901,331 | 2004 | 24,139,319 | 2003 | 23,404,158 | 2002 | 22,658,816 | 2001 | 21,940,743 | 2000 | 21,277,877 | 1999 | 20,623,847 | 1998 | 19,968,726 | 1997 | 19,374,176 | 1996 | 18,842,656 | 1995 | 18,320,348 | 1994 | 17,761,764 | 1993 | 17,210,279 | 1992 | 16,667,910 | 1991 | 16,133,604 | 1990 | 15,671,133 | 1989 | 15,236,548 | 1988 | 14,783,056 | 1987 | 14,363,919 | 1986 | 14,007,978 | 1985 | 13,684,271 | 1984 | 13,352,938 | 1983 | 13,004,777 | 1982 | 12,641,983 | 1981 | 12,299,419 | 1980 | 12,000,631 | 1979 | 11,666,144 | 1978 | 11,273,888 | 1977 | 10,901,259 | 1976 | 10,575,398 | 1975 | 10,269,325 | 1974 | 9,960,134 | 1973 | 9,658,112 | 1972 | 9,408,847 | 1971 | 9,198,561 | 1970 | 8,987,778 | 1969 | 8,781,155 | 1968 | 8,576,906 | 1967 | 8,352,907 | 1966 | 8,121,859 | 1965 | 7,901,325 | 1964 | 7,695,505 | 1963 | 7,512,560 | 1962 | 7,351,275 | 1961 | 7,198,047 | 1960 | 7,053,276 |
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