| Year | Value | | 2022 | 7,505,478 | | 2021 | 7,481,877 | | 2020 | 7,444,768 | | 2019 | 7,424,102 | | 2018 | 7,374,650 | | 2017 | 7,303,634 | | 2016 | 7,265,272 | | 2015 | 7,224,602 | | 2014 | 7,181,044 | | 2013 | 7,135,884 | | 2012 | 7,088,996 | | 2011 | 7,044,357 | | 2010 | 7,004,428 | | 2009 | 6,964,240 | | 2008 | 6,923,924 | | 2007 | 6,884,705 | | 2006 | 6,844,183 | | 2005 | 6,802,474 | | 2004 | 6,760,372 | | 2003 | 6,716,747 | | 2002 | 6,671,842 | | 2001 | 6,626,803 | | 2000 | 6,582,141 | | 1999 | 6,535,399 | | 1998 | 6,484,492 | | 1997 | 6,430,969 | | 1996 | 6,376,465 | | 1995 | 6,319,517 | | 1994 | 6,261,744 | | 1993 | 6,206,775 | | 1992 | 6,152,432 | | 1991 | 6,100,213 | | 1990 | 6,057,836 | | 1989 | 6,020,383 | | 1988 | 5,980,371 | | 1987 | 5,939,439 | | 1986 | 5,894,393 | | 1985 | 5,841,960 | | 1984 | 5,785,882 | | 1983 | 5,727,558 | | 1982 | 5,666,254 | | 1981 | 5,604,584 | | 1980 | 5,544,061 | | 1979 | 5,486,916 | | 1978 | 5,432,222 | | 1977 | 5,377,263 | | 1976 | 5,322,281 | | 1975 | 5,266,374 | | 1974 | 5,208,944 | | 1973 | 5,150,123 | | 1972 | 5,090,052 | | 1971 | 5,023,876 | | 1970 | 4,953,314 | | 1969 | 4,883,868 | | 1968 | 4,813,958 | | 1967 | 4,743,053 | | 1966 | 4,670,465 | | 1965 | 4,596,245 | | 1964 | 4,520,592 | | 1963 | 4,443,544 | | 1962 | 4,366,420 | | 1961 | 4,289,429 | | 1960 | 4,209,141 |
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