| Year | Value | | 2022 | 5,261,525 | | 2021 | 5,106,302 | | 2020 | 4,953,822 | | 2019 | 4,796,982 | | 2018 | 4,643,156 | | 2017 | 4,492,744 | | 2016 | 4,326,115 | | 2015 | 4,143,162 | | 2014 | 3,953,714 | | 2013 | 3,751,177 | | 2012 | 3,547,124 | | 2011 | 3,364,408 | | 2010 | 3,215,487 | | 2009 | 3,098,572 | | 2008 | 3,006,105 | | 2007 | 2,918,693 | | 2006 | 2,823,945 | | 2005 | 2,723,484 | | 2004 | 2,620,463 | | 2003 | 2,521,190 | | 2002 | 2,431,789 | | 2001 | 2,354,462 | | 2000 | 2,290,863 | | 1999 | 2,239,041 | | 1998 | 2,191,278 | | 1997 | 2,142,674 | | 1996 | 2,088,538 | | 1995 | 2,027,767 | | 1994 | 1,965,505 | | 1993 | 1,904,975 | | 1992 | 1,845,148 | | 1991 | 1,771,471 | | 1990 | 1,697,586 | | 1989 | 1,636,775 | | 1988 | 1,569,064 | | 1987 | 1,493,301 | | 1986 | 1,421,356 | | 1985 | 1,359,156 | | 1984 | 1,302,742 | | 1983 | 1,256,929 | | 1982 | 1,226,307 | | 1981 | 1,194,641 | | 1980 | 1,180,467 | | 1979 | 1,187,960 | | 1978 | 1,185,818 | | 1977 | 1,187,098 | | 1976 | 1,191,160 | | 1975 | 1,186,872 | | 1974 | 1,177,385 | | 1973 | 1,160,509 | | 1972 | 1,134,909 | | 1971 | 1,102,741 | | 1970 | 1,069,535 | | 1969 | 1,037,088 | | 1968 | 1,007,554 | | 1967 | 980,597 | | 1966 | 955,659 | | 1965 | 931,413 | | 1964 | 907,557 | | 1963 | 884,569 | | 1962 | 862,087 | | 1961 | 840,563 | | 1960 | 820,427 |
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