| Year | Value | | 2022 | 4,408,581 | | 2021 | 4,351,267 | | 2020 | 4,294,396 | | 2019 | 4,232,532 | | 2018 | 4,165,255 | | 2017 | 4,096,063 | | 2016 | 4,026,336 | | 2015 | 3,957,099 | | 2014 | 3,888,793 | | 2013 | 3,821,556 | | 2012 | 3,754,862 | | 2011 | 3,688,674 | | 2010 | 3,623,617 | | 2009 | 3,559,343 | | 2008 | 3,495,276 | | 2007 | 3,431,614 | | 2006 | 3,368,573 | | 2005 | 3,305,868 | | 2004 | 3,243,311 | | 2003 | 3,181,608 | | 2002 | 3,120,990 | | 2001 | 3,061,024 | | 2000 | 3,001,731 | | 1999 | 2,943,120 | | 1998 | 2,885,177 | | 1997 | 2,827,992 | | 1996 | 2,771,606 | | 1995 | 2,716,067 | | 1994 | 2,661,385 | | 1993 | 2,607,499 | | 1992 | 2,554,382 | | 1991 | 2,502,044 | | 1990 | 2,449,968 | | 1989 | 2,398,535 | | 1988 | 2,347,821 | | 1987 | 2,297,231 | | 1986 | 2,246,960 | | 1985 | 2,197,065 | | 1984 | 2,147,577 | | 1983 | 2,098,499 | | 1982 | 2,050,247 | | 1981 | 2,003,092 | | 1980 | 1,956,987 | | 1979 | 1,911,814 | | 1978 | 1,867,313 | | 1977 | 1,823,146 | | 1976 | 1,779,037 | | 1975 | 1,734,876 | | 1974 | 1,690,676 | | 1973 | 1,646,580 | | 1972 | 1,602,646 | | 1971 | 1,559,072 | | 1970 | 1,516,188 | | 1969 | 1,473,965 | | 1968 | 1,432,255 | | 1967 | 1,391,072 | | 1966 | 1,350,462 | | 1965 | 1,310,556 | | 1964 | 1,271,461 | | 1963 | 1,233,267 | | 1962 | 1,196,289 | | 1961 | 1,160,832 | | 1960 | 1,126,989 |
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