| Year | Value | | 2022 | 11,420,661 | | 2021 | 11,076,652 | | 2020 | 10,772,368 | | 2019 | 10,495,227 | | 2018 | 10,236,709 | | 2017 | 9,984,243 | | 2016 | 9,727,593 | | 2015 | 9,444,293 | | 2014 | 9,147,224 | | 2013 | 8,872,250 | | 2012 | 8,619,119 | | 2011 | 8,368,497 | | 2010 | 8,104,200 | | 2009 | 7,834,463 | | 2008 | 7,563,984 | | 2007 | 7,286,002 | | 2006 | 7,025,958 | | 2005 | 6,793,903 | | 2004 | 6,572,199 | | 2003 | 6,360,946 | | 2002 | 6,162,197 | | 2001 | 5,948,969 | | 2000 | 5,715,626 | | 1999 | 5,484,446 | | 1998 | 5,251,102 | | 1997 | 5,022,037 | | 1996 | 4,807,270 | | 1995 | 4,594,861 | | 1994 | 4,374,614 | | 1993 | 4,170,220 | | 1992 | 3,985,888 | | 1991 | 3,811,440 | | 1990 | 3,659,320 | | 1989 | 3,543,857 | | 1988 | 3,470,450 | | 1987 | 3,424,598 | | 1986 | 3,390,980 | | 1985 | 3,361,225 | | 1984 | 3,332,094 | | 1983 | 3,297,419 | | 1982 | 3,255,867 | | 1981 | 3,201,816 | | 1980 | 3,143,250 | | 1979 | 3,086,012 | | 1978 | 3,028,181 | | 1977 | 2,965,240 | | 1976 | 2,884,267 | | 1975 | 2,801,796 | | 1974 | 2,731,786 | | 1973 | 2,667,476 | | 1972 | 2,603,768 | | 1971 | 2,537,444 | | 1970 | 2,464,993 | | 1969 | 2,386,278 | | 1968 | 2,302,013 | | 1967 | 2,215,341 | | 1966 | 2,134,532 | | 1965 | 2,067,642 | | 1964 | 2,013,108 | | 1963 | 1,966,174 | | 1962 | 1,925,920 | | 1961 | 1,892,135 | | 1960 | 1,864,069 |
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