| Year | Value | | 2022 | 2,855,835 | | 2021 | 2,890,482 | | 2020 | 2,943,234 | | 2019 | 2,991,901 | | 2018 | 3,024,466 | | 2017 | 3,049,628 | | 2016 | 3,065,788 | | 2015 | 3,068,890 | | 2014 | 3,077,855 | | 2013 | 3,089,575 | | 2012 | 3,090,124 | | 2011 | 3,094,107 | | 2010 | 3,100,784 | | 2009 | 3,101,574 | | 2008 | 3,127,881 | | 2007 | 3,184,358 | | 2006 | 3,243,532 | | 2005 | 3,322,586 | | 2004 | 3,423,552 | | 2003 | 3,512,769 | | 2002 | 3,577,964 | | 2001 | 3,641,366 | | 2000 | 3,714,694 | | 1999 | 3,802,736 | | 1998 | 3,911,160 | | 1997 | 4,042,346 | | 1996 | 4,200,714 | | 1995 | 4,376,373 | | 1994 | 4,570,654 | | 1993 | 4,776,273 | | 1992 | 4,947,798 | | 1991 | 5,053,656 | | 1990 | 5,085,975 | | 1989 | 5,044,400 | | 1988 | 4,943,651 | | 1987 | 4,852,668 | | 1986 | 4,677,588 | | 1985 | 4,502,490 | | 1984 | 4,433,349 | | 1983 | 4,349,461 | | 1982 | 4,228,844 | | 1981 | 4,200,940 | | 1980 | 4,188,326 | | 1979 | 4,096,030 | | 1978 | 4,041,373 | | 1977 | 3,997,398 | | 1976 | 3,973,978 | | 1975 | 3,993,020 | | 1974 | 4,025,186 | | 1973 | 4,074,943 | | 1972 | 4,182,950 | | 1971 | 4,341,129 | | 1970 | 4,493,463 | | 1969 | 4,796,424 | | 1968 | 5,171,210 | | 1967 | 5,499,417 | | 1966 | 5,592,768 | | 1965 | 5,424,520 | | 1964 | 5,153,757 | | 1963 | 4,867,569 | | 1962 | 4,615,622 | | 1961 | 4,563,498 | | 1960 | 4,685,492 |
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