| Year | Value | | 2022 | 10,363,475 | | 2021 | 10,214,721 | | 2020 | 9,990,818 | | 2019 | 9,757,520 | | 2018 | 9,516,281 | | 2017 | 9,270,152 | | 2016 | 9,018,612 | | 2015 | 8,569,127 | | 2014 | 7,792,223 | | 2013 | 6,858,003 | | 2012 | 6,359,781 | | 2011 | 6,197,912 | | 2010 | 5,966,981 | | 2009 | 5,758,537 | | 2008 | 5,551,184 | | 2007 | 5,332,251 | | 2006 | 4,919,371 | | 2005 | 4,513,583 | | 2004 | 4,333,049 | | 2003 | 4,225,591 | | 2002 | 4,130,531 | | 2001 | 4,041,994 | | 2000 | 3,957,467 | | 1999 | 3,874,377 | | 1998 | 3,790,503 | | 1997 | 3,703,241 | | 1996 | 3,604,906 | | 1995 | 3,486,621 | | 1994 | 3,325,846 | | 1993 | 3,125,292 | | 1992 | 2,922,825 | | 1991 | 2,729,802 | | 1990 | 2,550,957 | | 1989 | 2,387,032 | | 1988 | 2,237,428 | | 1987 | 2,098,408 | | 1986 | 1,967,335 | | 1985 | 1,843,390 | | 1984 | 1,726,608 | | 1983 | 1,616,454 | | 1982 | 1,513,160 | | 1981 | 1,417,762 | | 1980 | 1,330,785 | | 1979 | 1,261,038 | | 1978 | 1,213,509 | | 1977 | 1,169,480 | | 1976 | 1,127,871 | | 1975 | 1,087,646 | | 1974 | 1,047,480 | | 1973 | 1,007,072 | | 1972 | 965,677 | | 1971 | 921,379 | | 1970 | 871,678 | | 1969 | 815,818 | | 1968 | 755,699 | | 1967 | 695,580 | | 1966 | 640,450 | | 1965 | 593,341 | | 1964 | 555,016 | | 1963 | 524,191 | | 1962 | 497,355 | | 1961 | 467,435 | | 1960 | 431,421 |
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