| Year | Value | | 2022 | 9,698,375 | | 2021 | 9,419,420 | | 2020 | 9,162,172 | | 2019 | 8,871,623 | | 2018 | 8,540,233 | | 2017 | 8,196,339 | | 2016 | 7,855,695 | | 2015 | 7,525,251 | | 2014 | 7,213,541 | | 2013 | 6,935,072 | | 2012 | 6,692,963 | | 2011 | 6,479,422 | | 2010 | 6,289,602 | | 2009 | 6,117,710 | | 2008 | 5,947,201 | | 2007 | 5,781,960 | | 2006 | 5,619,243 | | 2005 | 5,456,292 | | 2004 | 5,294,047 | | 2003 | 5,138,679 | | 2002 | 4,994,831 | | 2001 | 4,860,672 | | 2000 | 4,736,280 | | 1999 | 4,620,824 | | 1998 | 4,510,265 | | 1997 | 4,401,629 | | 1996 | 4,292,299 | | 1995 | 4,182,076 | | 1994 | 4,068,180 | | 1993 | 3,948,472 | | 1992 | 3,825,481 | | 1991 | 3,700,308 | | 1990 | 3,574,437 | | 1989 | 3,450,108 | | 1988 | 3,328,176 | | 1987 | 3,212,004 | | 1986 | 3,107,379 | | 1985 | 3,017,481 | | 1984 | 2,940,795 | | 1983 | 2,875,056 | | 1982 | 2,817,063 | | 1981 | 2,760,681 | | 1980 | 2,701,542 | | 1979 | 2,638,452 | | 1978 | 2,570,489 | | 1977 | 2,498,395 | | 1976 | 2,425,492 | | 1975 | 2,352,932 | | 1974 | 2,280,812 | | 1973 | 2,210,739 | | 1972 | 2,143,576 | | 1971 | 2,078,196 | | 1970 | 2,016,707 | | 1969 | 1,957,962 | | 1968 | 1,897,695 | | 1967 | 1,836,818 | | 1966 | 1,775,363 | | 1965 | 1,712,444 | | 1964 | 1,649,000 | | 1963 | 1,586,340 | | 1962 | 1,525,338 | | 1961 | 1,468,197 | | 1960 | 1,417,976 |
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