Year | Value | 2022 | 39,498,284 | 2021 | 38,857,104 | 2020 | 38,182,936 | 2019 | 37,387,646 | 2018 | 36,538,359 | 2017 | 35,688,591 | 2016 | 34,851,480 | 2015 | 34,033,218 | 2014 | 33,234,118 | 2013 | 32,427,149 | 2012 | 31,574,691 | 2011 | 30,659,924 | 2010 | 29,692,620 | 2009 | 28,686,553 | 2008 | 27,483,787 | 2007 | 26,126,031 | 2006 | 24,829,512 | 2005 | 23,608,651 | 2004 | 22,467,838 | 2003 | 21,606,905 | 2002 | 21,008,718 | 2001 | 20,459,061 | 2000 | 19,966,738 | 1999 | 19,535,671 | 1998 | 19,160,867 | 1997 | 18,834,257 | 1996 | 18,521,819 | 1995 | 18,193,939 | 1994 | 17,845,108 | 1993 | 17,471,442 | 1992 | 17,083,809 | 1991 | 16,717,088 | 1990 | 16,385,813 | 1989 | 16,071,681 | 1988 | 15,764,548 | 1987 | 15,466,810 | 1986 | 15,169,804 | 1985 | 14,865,946 | 1984 | 14,556,966 | 1983 | 14,244,815 | 1982 | 13,934,827 | 1981 | 13,643,222 | 1980 | 13,366,529 | 1979 | 13,094,025 | 1978 | 12,829,103 | 1977 | 12,568,906 | 1976 | 12,307,700 | 1975 | 12,041,064 | 1974 | 11,771,211 | 1973 | 11,500,598 | 1972 | 11,234,977 | 1971 | 11,015,065 | 1970 | 10,820,434 | 1969 | 10,620,018 | 1968 | 10,439,953 | 1967 | 10,274,447 | 1966 | 10,095,367 | 1965 | 9,882,560 | 1964 | 9,635,582 | 1963 | 9,352,903 | 1962 | 9,053,138 | 1961 | 8,777,726 | 1960 | 8,550,332 |
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