| Year | Value | | 2022 | 9,771,339 | | 2021 | 9,468,402 | | 2020 | 9,188,307 | | 2019 | 8,905,898 | | 2018 | 8,628,896 | | 2017 | 8,376,326 | | 2016 | 8,144,788 | | 2015 | 7,916,398 | | 2014 | 7,671,229 | | 2013 | 7,424,420 | | 2012 | 7,206,632 | | 2011 | 7,013,490 | | 2010 | 6,830,819 | | 2009 | 6,663,067 | | 2008 | 6,500,382 | | 2007 | 6,317,084 | | 2006 | 6,119,822 | | 2005 | 5,926,756 | | 2004 | 5,744,222 | | 2003 | 5,578,328 | | 2002 | 5,427,384 | | 2001 | 5,284,300 | | 2000 | 5,147,739 | | 1999 | 5,021,943 | | 1998 | 4,905,167 | | 1997 | 4,797,563 | | 1996 | 4,697,049 | | 1995 | 4,607,452 | | 1994 | 4,548,340 | | 1993 | 4,500,288 | | 1992 | 4,432,210 | | 1991 | 4,349,019 | | 1990 | 4,264,724 | | 1989 | 4,182,565 | | 1988 | 4,103,526 | | 1987 | 4,024,705 | | 1986 | 3,942,717 | | 1985 | 3,863,734 | | 1984 | 3,784,890 | | 1983 | 3,708,957 | | 1982 | 3,630,687 | | 1981 | 3,542,880 | | 1980 | 3,471,518 | | 1979 | 3,398,410 | | 1978 | 3,301,125 | | 1977 | 3,207,047 | | 1976 | 3,120,518 | | 1975 | 3,035,860 | | 1974 | 2,954,482 | | 1973 | 2,878,039 | | 1972 | 2,806,652 | | 1971 | 2,737,899 | | 1970 | 2,670,111 | | 1969 | 2,604,056 | | 1968 | 2,539,349 | | 1967 | 2,476,761 | | 1966 | 2,416,094 | | 1965 | 2,355,640 | | 1964 | 2,295,660 | | 1963 | 2,236,369 | | 1962 | 2,178,113 | | 1961 | 2,122,046 | | 1960 | 2,070,347 |
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