Year | Value | 2022 | 34,889,566 | 2021 | 34,136,762 | 2020 | 33,323,884 | 2019 | 32,486,255 | 2018 | 31,645,525 | 2017 | 30,819,206 | 2016 | 29,981,884 | 2015 | 29,209,851 | 2014 | 28,522,730 | 2013 | 27,880,935 | 2012 | 27,273,317 | 2011 | 26,670,552 | 2010 | 26,072,931 | 2009 | 25,482,464 | 2008 | 24,900,929 | 2007 | 24,326,365 | 2006 | 23,759,492 | 2005 | 23,206,847 | 2004 | 22,665,080 | 2003 | 22,121,902 | 2002 | 21,553,414 | 2001 | 20,999,052 | 2000 | 20,468,997 | 1999 | 19,931,924 | 1998 | 19,386,443 | 1997 | 18,902,984 | 1996 | 18,441,229 | 1995 | 18,024,171 | 1994 | 17,612,412 | 1993 | 17,101,517 | 1992 | 16,585,214 | 1991 | 16,090,522 | 1990 | 15,638,735 | 1989 | 15,212,449 | 1988 | 14,796,364 | 1987 | 14,395,644 | 1986 | 14,013,857 | 1985 | 13,662,553 | 1984 | 13,330,834 | 1983 | 13,023,741 | 1982 | 12,749,244 | 1981 | 12,500,989 | 1980 | 12,283,207 | 1979 | 12,054,384 | 1978 | 11,777,802 | 1977 | 11,479,038 | 1976 | 11,187,848 | 1975 | 10,905,099 | 1974 | 10,632,897 | 1973 | 10,378,467 | 1972 | 10,144,038 | 1971 | 9,901,115 | 1970 | 9,629,673 | 1969 | 9,349,898 | 1968 | 9,087,147 | 1967 | 8,828,511 | 1966 | 8,580,583 | 1965 | 8,342,663 | 1964 | 8,113,135 | 1963 | 7,891,722 | 1962 | 7,679,426 | 1961 | 7,476,539 | 1960 | 7,281,270 |
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