| Year | Value | | 2022 | 10,933,757 | | 2021 | 10,845,616 | | 2020 | 10,772,527 | | 2019 | 10,715,994 | | 2018 | 10,692,579 | | 2017 | 10,680,731 | | 2016 | 10,654,122 | | 2015 | 10,648,229 | | 2014 | 10,695,536 | | 2013 | 10,760,497 | | 2012 | 10,829,881 | | 2011 | 10,895,649 | | 2010 | 10,926,561 | | 2009 | 10,892,932 | | 2008 | 10,804,804 | | 2007 | 10,683,612 | | 2006 | 10,545,973 | | 2005 | 10,406,243 | | 2004 | 10,260,158 | | 2003 | 10,115,821 | | 2002 | 9,976,710 | | 2001 | 9,836,489 | | 2000 | 9,693,852 | | 1999 | 9,552,661 | | 1998 | 9,403,148 | | 1997 | 9,245,548 | | 1996 | 9,089,172 | | 1995 | 8,919,826 | | 1994 | 8,732,644 | | 1993 | 8,534,994 | | 1992 | 8,326,286 | | 1991 | 8,103,405 | | 1990 | 7,871,960 | | 1989 | 7,632,105 | | 1988 | 7,380,351 | | 1987 | 7,117,879 | | 1986 | 6,845,908 | | 1985 | 6,567,873 | | 1984 | 6,290,970 | | 1983 | 6,018,283 | | 1982 | 5,747,502 | | 1981 | 5,480,270 | | 1980 | 5,219,797 | | 1979 | 4,972,622 | | 1978 | 4,747,551 | | 1977 | 4,554,014 | | 1976 | 4,404,231 | | 1975 | 4,295,384 | | 1974 | 4,215,696 | | 1973 | 4,161,913 | | 1972 | 4,127,328 | | 1971 | 4,099,017 | | 1970 | 4,076,544 | | 1969 | 4,061,493 | | 1968 | 4,046,737 | | 1967 | 4,033,114 | | 1966 | 4,018,755 | | 1965 | 4,008,737 | | 1964 | 3,972,859 | | 1963 | 3,899,647 | | 1962 | 3,818,732 | | 1961 | 3,734,815 | | 1960 | 3,652,724 |
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