| Year | Value | | 2022 | 4,939,071 | | 2021 | 4,882,259 | | 2020 | 4,810,538 | | 2019 | 4,722,012 | | 2018 | 4,630,150 | | 2017 | 4,523,537 | | 2016 | 4,404,253 | | 2015 | 4,294,615 | | 2014 | 4,190,260 | | 2013 | 4,078,979 | | 2012 | 3,978,127 | | 2011 | 3,898,192 | | 2010 | 3,837,304 | | 2009 | 3,796,073 | | 2008 | 3,757,696 | | 2007 | 3,708,895 | | 2006 | 3,649,950 | | 2005 | 3,566,857 | | 2004 | 3,459,806 | | 2003 | 3,355,192 | | 2002 | 3,268,973 | | 2001 | 3,197,669 | | 2000 | 3,138,634 | | 1999 | 3,087,901 | | 1998 | 3,035,355 | | 1997 | 2,978,158 | | 1996 | 2,915,081 | | 1995 | 2,845,531 | | 1994 | 2,768,804 | | 1993 | 2,688,280 | | 1992 | 2,611,865 | | 1991 | 2,542,651 | | 1990 | 2,479,896 | | 1989 | 2,418,973 | | 1988 | 2,353,795 | | 1987 | 2,286,588 | | 1986 | 2,221,865 | | 1985 | 2,160,480 | | 1984 | 2,103,889 | | 1983 | 2,053,327 | | 1982 | 2,006,354 | | 1981 | 1,958,755 | | 1980 | 1,904,360 | | 1979 | 1,833,674 | | 1978 | 1,749,242 | | 1977 | 1,660,538 | | 1976 | 1,570,569 | | 1975 | 1,488,158 | | 1974 | 1,422,359 | | 1973 | 1,367,641 | | 1972 | 1,316,770 | | 1971 | 1,268,513 | | 1970 | 1,223,783 | | 1969 | 1,188,404 | | 1968 | 1,163,286 | | 1967 | 1,143,698 | | 1966 | 1,126,711 | | 1965 | 1,108,988 | | 1964 | 1,089,181 | | 1963 | 1,066,884 | | 1962 | 1,040,746 | | 1961 | 1,011,118 | | 1960 | 978,222 |
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