| Year | Value | | 2022 | 10,480,456 | | 2021 | 10,218,942 | | 2020 | 9,958,303 | | 2019 | 9,698,995 | | 2018 | 9,445,207 | | 2017 | 9,197,987 | | 2016 | 8,956,544 | | 2015 | 8,719,776 | | 2014 | 8,485,579 | | 2013 | 8,255,436 | | 2012 | 8,030,996 | | 2011 | 7,811,265 | | 2010 | 7,595,842 | | 2009 | 7,384,918 | | 2008 | 7,178,959 | | 2007 | 6,976,891 | | 2006 | 6,778,224 | | 2005 | 6,585,398 | | 2004 | 6,401,576 | | 2003 | 6,228,350 | | 2002 | 6,065,205 | | 2001 | 5,911,060 | | 2000 | 5,764,787 | | 1999 | 5,624,113 | | 1998 | 5,496,002 | | 1997 | 5,386,547 | | 1996 | 5,287,204 | | 1995 | 5,190,199 | | 1994 | 5,201,856 | | 1993 | 5,265,662 | | 1992 | 5,192,413 | | 1991 | 5,046,355 | | 1990 | 4,896,164 | | 1989 | 4,708,651 | | 1988 | 4,492,752 | | 1987 | 4,259,055 | | 1986 | 4,063,323 | | 1985 | 3,918,380 | | 1984 | 3,772,741 | | 1983 | 3,629,666 | | 1982 | 3,489,880 | | 1981 | 3,354,921 | | 1980 | 3,226,071 | | 1979 | 3,104,547 | | 1978 | 2,992,130 | | 1977 | 2,891,552 | | 1976 | 2,803,139 | | 1975 | 2,723,323 | | 1974 | 2,649,289 | | 1973 | 2,579,784 | | 1972 | 2,513,903 | | 1971 | 2,451,273 | | 1970 | 2,391,677 | | 1969 | 2,334,582 | | 1968 | 2,278,934 | | 1967 | 2,224,041 | | 1966 | 2,170,258 | | 1965 | 2,118,104 | | 1964 | 2,067,370 | | 1963 | 2,017,497 | | 1962 | 1,968,570 | | 1961 | 1,921,351 | | 1960 | 1,876,295 |
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