| Year | Value | | 2022 | 7,962,002 | | 2021 | 7,643,800 | | 2020 | 7,326,869 | | 2019 | 7,003,491 | | 2018 | 6,704,880 | | 2017 | 6,445,042 | | 2016 | 6,217,337 | | 2015 | 6,018,840 | | 2014 | 5,840,806 | | 2013 | 5,673,476 | | 2012 | 5,510,518 | | 2011 | 5,352,683 | | 2010 | 5,201,098 | | 2009 | 5,056,796 | | 2008 | 4,913,317 | | 2007 | 4,782,017 | | 2006 | 4,658,908 | | 2005 | 4,540,104 | | 2004 | 4,425,782 | | 2003 | 4,311,723 | | 2002 | 4,192,368 | | 2001 | 4,066,929 | | 2000 | 3,939,097 | | 1999 | 3,809,081 | | 1998 | 3,675,652 | | 1997 | 3,540,239 | | 1996 | 3,405,211 | | 1995 | 3,271,998 | | 1994 | 3,141,059 | | 1993 | 3,013,663 | | 1992 | 2,894,121 | | 1991 | 2,786,066 | | 1990 | 2,691,608 | | 1989 | 2,612,187 | | 1988 | 2,546,068 | | 1987 | 2,487,883 | | 1986 | 2,431,360 | | 1985 | 2,372,321 | | 1984 | 2,309,035 | | 1983 | 2,240,111 | | 1982 | 2,166,434 | | 1981 | 2,091,854 | | 1980 | 2,019,571 | | 1979 | 1,949,042 | | 1978 | 1,880,672 | | 1977 | 1,816,225 | | 1976 | 1,754,840 | | 1975 | 1,694,848 | | 1974 | 1,634,953 | | 1973 | 1,574,974 | | 1972 | 1,515,141 | | 1971 | 1,454,956 | | 1970 | 1,395,568 | | 1969 | 1,337,620 | | 1968 | 1,279,908 | | 1967 | 1,223,704 | | 1966 | 1,171,780 | | 1965 | 1,126,849 | | 1964 | 1,089,265 | | 1963 | 1,057,492 | | 1962 | 1,029,215 | | 1961 | 1,002,167 | | 1960 | 973,441 |
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