| Year | Value | | 2022 | 9,756,682 | | 2021 | 9,535,810 | | 2020 | 9,352,544 | | 2019 | 9,216,108 | | 2018 | 9,117,951 | | 2017 | 9,018,106 | | 2016 | 8,942,450 | | 2015 | 8,879,167 | | 2014 | 8,755,618 | | 2013 | 8,592,283 | | 2012 | 8,422,473 | | 2011 | 8,208,664 | | 2010 | 7,934,510 | | 2009 | 7,628,445 | | 2008 | 7,326,491 | | 2007 | 7,048,058 | | 2006 | 6,797,118 | | 2005 | 6,583,791 | | 2004 | 6,396,655 | | 2003 | 6,221,904 | | 2002 | 6,070,293 | | 2001 | 5,888,785 | | 2000 | 5,641,862 | | 1999 | 5,418,312 | | 1998 | 5,247,547 | | 1997 | 5,096,394 | | 1996 | 4,964,031 | | 1995 | 4,841,135 | | 1994 | 4,748,355 | | 1993 | 4,672,567 | | 1992 | 4,640,692 | | 1991 | 4,605,365 | | 1990 | 4,505,191 | | 1989 | 4,394,572 | | 1988 | 4,270,371 | | 1987 | 4,125,906 | | 1986 | 3,970,039 | | 1985 | 3,809,269 | | 1984 | 3,668,825 | | 1983 | 3,533,547 | | 1982 | 3,355,511 | | 1981 | 3,136,676 | | 1980 | 2,897,032 | | 1979 | 2,695,930 | | 1978 | 2,565,287 | | 1977 | 2,486,146 | | 1976 | 2,442,546 | | 1975 | 2,425,854 | | 1974 | 2,425,520 | | 1973 | 2,427,955 | | 1972 | 2,417,367 | | 1971 | 2,394,948 | | 1970 | 2,363,129 | | 1969 | 2,317,836 | | 1968 | 2,264,509 | | 1967 | 2,209,060 | | 1966 | 2,158,187 | | 1965 | 2,112,025 | | 1964 | 2,069,885 | | 1963 | 2,032,053 | | 1962 | 1,998,160 | | 1961 | 1,966,206 | | 1960 | 1,929,183 |
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