| Year | Value | | 2022 | 8,562,379 | | 2021 | 8,636,304 | | 2020 | 8,700,824 | | 2019 | 8,755,225 | | 2018 | 8,795,511 | | 2017 | 8,815,156 | | 2016 | 8,806,953 | | 2015 | 8,767,877 | | 2014 | 8,692,438 | | 2013 | 8,581,035 | | 2012 | 8,439,500 | | 2011 | 8,276,770 | | 2010 | 8,102,576 | | 2009 | 7,926,764 | | 2008 | 7,762,496 | | 2007 | 7,612,688 | | 2006 | 7,473,794 | | 2005 | 7,348,506 | | 2004 | 7,234,241 | | 2003 | 7,123,598 | | 2002 | 7,023,687 | | 2001 | 6,945,146 | | 2000 | 6,884,769 | | 1999 | 6,840,409 | | 1998 | 6,804,396 | | 1997 | 6,757,024 | | 1996 | 6,685,379 | | 1995 | 6,586,806 | | 1994 | 6,460,464 | | 1993 | 6,310,822 | | 1992 | 6,146,803 | | 1991 | 5,974,685 | | 1990 | 5,798,110 | | 1989 | 5,620,651 | | 1988 | 5,444,799 | | 1987 | 5,273,459 | | 1986 | 5,110,013 | | 1985 | 4,953,924 | | 1984 | 4,805,341 | | 1983 | 4,648,128 | | 1982 | 4,470,371 | | 1981 | 4,279,863 | | 1980 | 4,079,982 | | 1979 | 3,880,806 | | 1978 | 3,707,931 | | 1977 | 3,572,811 | | 1976 | 3,466,168 | | 1975 | 3,380,672 | | 1974 | 3,306,131 | | 1973 | 3,234,250 | | 1972 | 3,160,824 | | 1971 | 3,086,383 | | 1970 | 3,013,616 | | 1969 | 2,943,906 | | 1968 | 2,881,451 | | 1967 | 2,828,480 | | 1966 | 2,781,571 | | 1965 | 2,736,983 | | 1964 | 2,691,885 | | 1963 | 2,642,478 | | 1962 | 2,586,125 | | 1961 | 2,522,745 | | 1960 | 2,455,579 |
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