| Year | Value | | 2022 | 10,580,316 | | 2021 | 10,645,768 | | 2020 | 10,674,446 | | 2019 | 10,635,701 | | 2018 | 10,541,602 | | 2017 | 10,415,959 | | 2016 | 10,275,031 | | 2015 | 10,131,999 | | 2014 | 9,980,907 | | 2013 | 9,832,426 | | 2012 | 9,692,783 | | 2011 | 9,553,594 | | 2010 | 9,414,247 | | 2009 | 9,278,904 | | 2008 | 9,137,497 | | 2007 | 8,988,820 | | 2006 | 8,841,204 | | 2005 | 8,680,949 | | 2004 | 8,504,621 | | 2003 | 8,317,247 | | 2002 | 8,115,922 | | 2001 | 7,899,800 | | 2000 | 7,674,542 | | 1999 | 7,440,699 | | 1998 | 7,194,648 | | 1997 | 6,937,609 | | 1996 | 6,671,699 | | 1995 | 6,399,981 | | 1994 | 6,129,329 | | 1993 | 5,862,811 | | 1992 | 5,598,065 | | 1991 | 5,336,410 | | 1990 | 5,080,927 | | 1989 | 4,837,979 | | 1988 | 4,615,996 | | 1987 | 4,423,845 | | 1986 | 4,273,501 | | 1985 | 4,162,901 | | 1984 | 4,080,905 | | 1983 | 4,024,201 | | 1982 | 3,986,184 | | 1981 | 3,954,572 | | 1980 | 3,928,897 | | 1979 | 3,910,388 | | 1978 | 3,890,943 | | 1977 | 3,865,854 | | 1976 | 3,831,290 | | 1975 | 3,783,981 | | 1974 | 3,722,767 | | 1973 | 3,649,835 | | 1972 | 3,569,080 | | 1971 | 3,484,921 | | 1970 | 3,401,589 | | 1969 | 3,321,490 | | 1968 | 3,244,774 | | 1967 | 3,171,673 | | 1966 | 3,101,140 | | 1965 | 3,035,437 | | 1964 | 2,954,776 | | 1963 | 2,852,827 | | 1962 | 2,748,429 | | 1961 | 2,645,391 | | 1960 | 2,547,827 |
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