| Year | Value | | 2022 | 3,455,690 | | 2021 | 3,434,595 | | 2020 | 3,421,063 | | 2019 | 3,405,119 | | 2018 | 3,394,220 | | 2017 | 3,388,868 | | 2016 | 3,384,331 | | 2015 | 3,389,031 | | 2014 | 3,408,962 | | 2013 | 3,432,249 | | 2012 | 3,444,379 | | 2011 | 3,437,079 | | 2010 | 3,405,622 | | 2009 | 3,348,424 | | 2008 | 3,272,710 | | 2007 | 3,191,667 | | 2006 | 3,113,258 | | 2005 | 3,036,034 | | 2004 | 2,957,942 | | 2003 | 2,880,854 | | 2002 | 2,801,898 | | 2001 | 2,719,618 | | 2000 | 2,641,632 | | 1999 | 2,570,818 | | 1998 | 2,505,856 | | 1997 | 2,450,093 | | 1996 | 2,404,675 | | 1995 | 2,367,811 | | 1994 | 2,339,034 | | 1993 | 2,315,456 | | 1992 | 2,292,317 | | 1991 | 2,264,910 | | 1990 | 2,228,564 | | 1989 | 2,182,777 | | 1988 | 2,129,328 | | 1987 | 2,070,538 | | 1986 | 2,010,121 | | 1985 | 1,948,923 | | 1984 | 1,887,399 | | 1983 | 1,827,462 | | 1982 | 1,768,734 | | 1981 | 1,711,043 | | 1980 | 1,656,231 | | 1979 | 1,604,467 | | 1978 | 1,555,721 | | 1977 | 1,510,892 | | 1976 | 1,469,825 | | 1975 | 1,430,657 | | 1974 | 1,392,254 | | 1973 | 1,354,142 | | 1972 | 1,315,327 | | 1971 | 1,275,822 | | 1970 | 1,236,083 | | 1969 | 1,195,270 | | 1968 | 1,153,428 | | 1967 | 1,111,403 | | 1966 | 1,068,460 | | 1965 | 1,024,317 | | 1964 | 981,019 | | 1963 | 939,993 | | 1962 | 900,301 | | 1961 | 861,490 | | 1960 | 823,740 |
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