| Year | Value | | 2022 | 10,946,265 | | 2021 | 10,826,690 | | 2020 | 10,629,621 | | 2019 | 10,100,372 | | 2018 | 9,743,677 | | 2017 | 9,604,130 | | 2016 | 9,365,889 | | 2015 | 9,017,905 | | 2014 | 8,782,589 | | 2013 | 8,499,935 | | 2012 | 8,076,276 | | 2011 | 7,578,565 | | 2010 | 7,235,425 | | 2009 | 7,006,371 | | 2008 | 6,724,225 | | 2007 | 6,437,085 | | 2006 | 6,248,017 | | 2005 | 6,093,338 | | 2004 | 5,940,213 | | 2003 | 5,820,945 | | 2002 | 5,742,032 | | 2001 | 5,690,645 | | 2000 | 5,657,862 | | 1999 | 5,704,031 | | 1998 | 5,770,227 | | 1997 | 5,827,537 | | 1996 | 5,918,707 | | 1995 | 5,966,404 | | 1994 | 5,921,485 | | 1993 | 5,996,225 | | 1992 | 6,099,836 | | 1991 | 6,041,249 | | 1990 | 6,029,488 | | 1989 | 6,086,836 | | 1988 | 5,948,237 | | 1987 | 5,744,686 | | 1986 | 5,674,824 | | 1985 | 5,576,257 | | 1984 | 5,439,458 | | 1983 | 5,384,344 | | 1982 | 5,405,497 | | 1981 | 5,411,628 | | 1980 | 5,406,422 | | 1979 | 5,388,720 | | 1978 | 5,337,121 | | 1977 | 5,246,391 | | 1976 | 5,079,590 | | 1975 | 4,906,976 | | 1974 | 4,750,696 | | 1973 | 4,563,406 | | 1972 | 4,416,484 | | 1971 | 4,318,840 | | 1970 | 4,190,678 | | 1969 | 4,090,499 | | 1968 | 4,072,685 | | 1967 | 4,031,351 | | 1966 | 3,959,028 | | 1965 | 3,936,889 | | 1964 | 3,910,066 | | 1963 | 3,815,660 | | 1962 | 3,686,346 | | 1961 | 3,597,793 | | 1960 | 3,523,398 |
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