| Year | Value | | 2022 | 10,240,539 | | 2021 | 10,227,073 | | 2020 | 10,175,797 | | 2019 | 10,001,191 | | 2018 | 9,835,834 | | 2017 | 9,603,555 | | 2016 | 9,495,289 | | 2015 | 9,262,609 | | 2014 | 8,785,398 | | 2013 | 8,442,398 | | 2012 | 8,275,234 | | 2011 | 8,004,757 | | 2010 | 7,693,110 | | 2009 | 7,466,942 | | 2008 | 7,200,349 | | 2007 | 6,878,468 | | 2006 | 6,440,104 | | 2005 | 6,120,785 | | 2004 | 5,972,555 | | 2003 | 5,755,518 | | 2002 | 5,518,058 | | 2001 | 5,416,919 | | 2000 | 5,326,262 | | 1999 | 5,162,748 | | 1998 | 5,089,120 | | 1997 | 5,075,774 | | 1996 | 5,071,617 | | 1995 | 5,155,177 | | 1994 | 5,373,747 | | 1993 | 5,508,730 | | 1992 | 5,547,333 | | 1991 | 5,559,468 | | 1990 | 5,424,491 | | 1989 | 5,170,234 | | 1988 | 5,070,489 | | 1987 | 5,071,079 | | 1986 | 4,975,675 | | 1985 | 4,977,920 | | 1984 | 5,085,506 | | 1983 | 4,999,643 | | 1982 | 4,815,075 | | 1981 | 4,754,332 | | 1980 | 4,651,481 | | 1979 | 4,473,735 | | 1978 | 4,367,827 | | 1977 | 4,385,123 | | 1976 | 4,400,957 | | 1975 | 4,396,499 | | 1974 | 4,373,417 | | 1973 | 4,334,490 | | 1972 | 4,277,251 | | 1971 | 4,164,407 | | 1970 | 4,055,056 | | 1969 | 3,974,610 | | 1968 | 3,841,491 | | 1967 | 3,729,902 | | 1966 | 3,655,331 | | 1965 | 3,551,857 | | 1964 | 3,478,614 | | 1963 | 3,497,785 | | 1962 | 3,495,944 | | 1961 | 3,458,132 | | 1960 | 3,466,668 |
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