| Year | Value | | 2022 | 2,160,479 | | 2021 | 2,210,561 | | 2020 | 2,284,879 | | 2019 | 2,370,060 | | 2018 | 2,454,725 | | 2017 | 2,528,765 | | 2016 | 2,581,125 | | 2015 | 2,615,948 | | 2014 | 2,651,390 | | 2013 | 2,686,798 | | 2012 | 2,719,578 | | 2011 | 2,748,433 | | 2010 | 2,765,204 | | 2009 | 2,771,859 | | 2008 | 2,783,544 | | 2007 | 2,800,004 | | 2006 | 2,826,685 | | 2005 | 2,872,280 | | 2004 | 2,920,682 | | 2003 | 2,957,390 | | 2002 | 2,981,960 | | 2001 | 2,998,903 | | 2000 | 3,003,843 | | 1999 | 3,015,552 | | 1998 | 3,029,963 | | 1997 | 3,032,050 | | 1996 | 3,039,241 | | 1995 | 3,048,303 | | 1994 | 3,057,554 | | 1993 | 3,089,924 | | 1992 | 3,150,370 | | 1991 | 3,212,008 | | 1990 | 3,290,490 | | 1989 | 3,390,149 | | 1988 | 3,476,704 | | 1987 | 3,546,620 | | 1986 | 3,614,303 | | 1985 | 3,691,319 | | 1984 | 3,777,862 | | 1983 | 3,883,747 | | 1982 | 4,013,682 | | 1981 | 4,169,840 | | 1980 | 4,341,896 | | 1979 | 4,531,452 | | 1978 | 4,733,825 | | 1977 | 4,905,335 | | 1976 | 5,014,903 | | 1975 | 5,051,989 | | 1974 | 5,004,197 | | 1973 | 4,898,639 | | 1972 | 4,797,688 | | 1971 | 4,614,689 | | 1970 | 4,403,759 | | 1969 | 4,345,740 | | 1968 | 4,265,793 | | 1967 | 4,155,326 | | 1966 | 4,132,276 | | 1965 | 4,123,962 | | 1964 | 4,035,460 | | 1963 | 3,986,647 | | 1962 | 3,946,297 | | 1961 | 3,926,916 | | 1960 | 3,954,053 |
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