| Year | Value | | 2022 | 9,923,422 | | 2021 | 9,814,802 | | 2020 | 9,702,437 | | 2019 | 9,577,279 | | 2018 | 9,450,651 | | 2017 | 9,330,803 | | 2016 | 9,209,005 | | 2015 | 9,083,105 | | 2014 | 8,957,536 | | 2013 | 8,823,718 | | 2012 | 8,682,993 | | 2011 | 8,543,454 | | 2010 | 8,391,601 | | 2009 | 8,222,495 | | 2008 | 8,041,886 | | 2007 | 7,849,005 | | 2006 | 7,641,242 | | 2005 | 7,425,568 | | 2004 | 7,205,682 | | 2003 | 6,975,034 | | 2002 | 6,732,487 | | 2001 | 6,482,054 | | 2000 | 6,225,864 | | 1999 | 5,969,808 | | 1998 | 5,716,730 | | 1997 | 5,464,787 | | 1996 | 5,214,902 | | 1995 | 4,970,266 | | 1994 | 4,745,397 | | 1993 | 4,558,346 | | 1992 | 4,416,029 | | 1991 | 4,324,525 | | 1990 | 4,276,176 | | 1989 | 4,247,444 | | 1988 | 4,223,158 | | 1987 | 4,198,092 | | 1986 | 4,164,966 | | 1985 | 4,127,421 | | 1984 | 4,091,342 | | 1983 | 4,050,731 | | 1982 | 4,003,084 | | 1981 | 3,947,034 | | 1980 | 3,880,756 | | 1979 | 3,803,865 | | 1978 | 3,717,885 | | 1977 | 3,624,786 | | 1976 | 3,527,038 | | 1975 | 3,427,129 | | 1974 | 3,326,376 | | 1973 | 3,224,480 | | 1972 | 3,120,146 | | 1971 | 3,011,951 | | 1970 | 2,898,758 | | 1969 | 2,780,915 | | 1968 | 2,661,601 | | 1967 | 2,546,851 | | 1966 | 2,442,397 | | 1965 | 2,351,767 | | 1964 | 2,272,075 | | 1963 | 2,203,494 | | 1962 | 2,149,057 | | 1961 | 2,106,413 | | 1960 | 2,073,569 |
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