| Year | Value | | 2022 | 11,210,046 | | 2021 | 11,338,842 | | 2020 | 11,329,647 | | 2019 | 11,040,064 | | 2018 | 10,616,183 | | 2017 | 10,169,283 | | 2016 | 9,739,365 | | 2015 | 9,353,093 | | 2014 | 9,002,568 | | 2013 | 8,682,760 | | 2012 | 8,382,355 | | 2011 | 8,090,439 | | 2010 | 7,806,525 | | 2009 | 7,534,583 | | 2008 | 7,276,056 | | 2007 | 7,024,451 | | 2006 | 6,779,384 | | 2005 | 6,541,733 | | 2004 | 6,307,386 | | 2003 | 6,076,367 | | 2002 | 5,853,261 | | 2001 | 5,636,234 | | 2000 | 5,425,644 | | 1999 | 5,217,123 | | 1998 | 5,018,187 | | 1997 | 4,848,696 | | 1996 | 4,708,287 | | 1995 | 4,582,501 | | 1994 | 4,460,465 | | 1993 | 4,340,846 | | 1992 | 4,230,120 | | 1991 | 4,127,530 | | 1990 | 4,026,385 | | 1989 | 3,925,663 | | 1988 | 3,823,598 | | 1987 | 3,717,930 | | 1986 | 3,610,740 | | 1985 | 3,509,358 | | 1984 | 3,415,143 | | 1983 | 3,323,661 | | 1982 | 3,231,513 | | 1981 | 3,135,728 | | 1980 | 3,031,809 | | 1979 | 2,916,844 | | 1978 | 2,793,804 | | 1977 | 2,666,497 | | 1976 | 2,541,068 | | 1975 | 2,428,858 | | 1974 | 2,331,178 | | 1973 | 2,249,786 | | 1972 | 2,185,901 | | 1971 | 2,136,195 | | 1970 | 2,085,187 | | 1969 | 2,019,411 | | 1968 | 1,939,515 | | 1967 | 1,852,466 | | 1966 | 1,772,901 | | 1965 | 1,708,407 | | 1964 | 1,657,591 | | 1963 | 1,624,076 | | 1962 | 1,609,714 | | 1961 | 1,602,786 | | 1960 | 1,592,451 |
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