Year | Value | 2022 | 23,537,667 | 2021 | 23,388,928 | 2020 | 23,198,254 | 2019 | 22,981,296 | 2018 | 22,735,878 | 2017 | 22,479,208 | 2016 | 22,214,400 | 2015 | 21,925,304 | 2014 | 21,608,928 | 2013 | 21,270,328 | 2012 | 20,908,329 | 2011 | 20,545,329 | 2010 | 20,193,392 | 2009 | 19,858,050 | 2008 | 19,526,241 | 2007 | 19,215,000 | 2006 | 18,913,893 | 2005 | 18,622,682 | 2004 | 18,334,436 | 2003 | 18,040,240 | 2002 | 17,754,445 | 2001 | 17,493,264 | 2000 | 17,260,272 | 1999 | 17,057,471 | 1998 | 16,857,954 | 1997 | 16,623,493 | 1996 | 16,340,960 | 1995 | 16,009,612 | 1994 | 15,631,383 | 1993 | 15,218,782 | 1992 | 14,792,578 | 1991 | 14,366,436 | 1990 | 13,949,657 | 1989 | 13,554,554 | 1988 | 13,172,760 | 1987 | 12,791,810 | 1986 | 12,417,359 | 1985 | 12,047,084 | 1984 | 11,674,798 | 1983 | 11,284,997 | 1982 | 10,877,324 | 1981 | 10,467,967 | 1980 | 10,075,912 | 1979 | 9,717,353 | 1978 | 9,400,515 | 1977 | 9,126,691 | 1976 | 8,891,753 | 1975 | 8,673,712 | 1974 | 8,453,822 | 1973 | 8,235,889 | 1972 | 8,015,266 | 1971 | 7,792,091 | 1970 | 7,577,180 | 1969 | 7,373,949 | 1968 | 7,184,890 | 1967 | 7,016,000 | 1966 | 6,863,566 | 1965 | 6,727,375 | 1964 | 6,607,964 | 1963 | 6,497,154 | 1962 | 6,386,384 | 1961 | 6,272,546 | 1960 | 6,156,476 |
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