Year | Value | 2022 | 24,464,645 | 2021 | 24,211,699 | 2020 | 23,929,014 | 2019 | 23,612,441 | 2018 | 23,262,681 | 2017 | 22,879,421 | 2016 | 22,485,107 | 2015 | 22,082,106 | 2014 | 21,670,125 | 2013 | 21,275,532 | 2012 | 20,909,210 | 2011 | 20,562,491 | 2010 | 20,236,238 | 2009 | 19,935,090 | 2008 | 19,622,558 | 2007 | 19,319,915 | 2006 | 19,044,419 | 2005 | 18,799,926 | 2004 | 18,580,516 | 2003 | 18,364,488 | 2002 | 18,121,072 | 2001 | 17,828,180 | 2000 | 17,480,803 | 1999 | 17,082,375 | 1998 | 16,644,988 | 1997 | 16,188,251 | 1996 | 15,726,298 | 1995 | 15,267,858 | 1994 | 14,818,320 | 1993 | 14,377,069 | 1992 | 13,945,548 | 1991 | 13,528,004 | 1990 | 13,120,266 | 1989 | 12,715,140 | 1988 | 12,294,591 | 1987 | 11,853,730 | 1986 | 11,406,520 | 1985 | 10,969,851 | 1984 | 10,563,045 | 1983 | 10,204,312 | 1982 | 9,899,812 | 1981 | 9,640,120 | 1980 | 9,403,385 | 1979 | 9,172,332 | 1978 | 8,947,558 | 1977 | 8,722,601 | 1976 | 8,495,399 | 1975 | 8,266,890 | 1974 | 8,040,094 | 1973 | 7,826,463 | 1972 | 7,635,573 | 1971 | 7,463,050 | 1970 | 7,317,099 | 1969 | 7,197,843 | 1968 | 7,086,612 | 1967 | 6,974,352 | 1966 | 6,855,823 | 1965 | 6,729,180 | 1964 | 6,595,273 | 1963 | 6,451,813 | 1962 | 6,296,970 | 1961 | 6,135,139 | 1960 | 5,968,341 |
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