| Year | Value | | 2022 | 5,444,061 | | 2021 | 5,331,660 | | 2020 | 5,216,679 | | 2019 | 5,098,974 | | 2018 | 4,973,262 | | 2017 | 4,826,744 | | 2016 | 4,672,850 | | 2015 | 4,528,625 | | 2014 | 4,400,781 | | 2013 | 4,293,783 | | 2012 | 4,206,627 | | 2011 | 4,130,953 | | 2010 | 4,052,192 | | 2009 | 3,972,060 | | 2008 | 3,883,597 | | 2007 | 3,780,840 | | 2006 | 3,670,647 | | 2005 | 3,555,423 | | 2004 | 3,441,450 | | 2003 | 3,336,534 | | 2002 | 3,240,779 | | 2001 | 3,153,167 | | 2000 | 3,063,033 | | 1999 | 2,965,639 | | 1998 | 2,877,891 | | 1997 | 2,801,830 | | 1996 | 2,752,285 | | 1995 | 2,713,859 | | 1994 | 2,642,531 | | 1993 | 2,555,151 | | 1992 | 2,487,964 | | 1991 | 2,438,560 | | 1990 | 2,390,757 | | 1989 | 2,344,542 | | 1988 | 2,299,334 | | 1987 | 2,249,265 | | 1986 | 2,196,555 | | 1985 | 2,143,988 | | 1984 | 2,093,586 | | 1983 | 2,043,365 | | 1982 | 1,991,888 | | 1981 | 1,942,950 | | 1980 | 1,892,768 | | 1979 | 1,839,242 | | 1978 | 1,780,151 | | 1977 | 1,717,511 | | 1976 | 1,654,830 | | 1975 | 1,592,681 | | 1974 | 1,531,074 | | 1973 | 1,471,867 | | 1972 | 1,415,505 | | 1971 | 1,362,513 | | 1970 | 1,313,510 | | 1969 | 1,268,090 | | 1968 | 1,225,959 | | 1967 | 1,187,290 | | 1966 | 1,150,808 | | 1965 | 1,114,927 | | 1964 | 1,079,721 | | 1963 | 1,045,399 | | 1962 | 1,012,416 | | 1961 | 980,166 | | 1960 | 948,720 |
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