Year | Value | 2022 | 12,440,488 | 2021 | 12,469,734 | 2020 | 12,732,028 | 2019 | 12,999,474 | 2018 | 13,248,161 | 2017 | 13,440,346 | 2016 | 13,583,330 | 2015 | 13,680,126 | 2014 | 13,754,257 | 2013 | 13,825,371 | 2012 | 13,933,271 | 2011 | 14,115,628 | 2010 | 14,370,251 | 2009 | 14,580,198 | 2008 | 14,748,709 | 2007 | 14,852,759 | 2006 | 14,913,729 | 2005 | 14,951,620 | 2004 | 14,985,985 | 2003 | 15,012,866 | 2002 | 15,045,354 | 2001 | 15,154,839 | 2000 | 15,304,389 | 1999 | 15,456,442 | 1998 | 15,639,970 | 1997 | 15,848,509 | 1996 | 15,984,805 | 1995 | 16,066,704 | 1994 | 16,150,738 | 1993 | 16,183,595 | 1992 | 16,113,930 | 1991 | 16,027,233 | 1990 | 15,956,002 | 1989 | 15,851,888 | 1988 | 15,722,658 | 1987 | 15,638,834 | 1986 | 15,584,480 | 1985 | 15,528,386 | 1984 | 15,482,708 | 1983 | 15,423,069 | 1982 | 15,347,597 | 1981 | 15,256,903 | 1980 | 15,169,878 | 1979 | 15,115,468 | 1978 | 15,092,281 | 1977 | 15,038,793 | 1976 | 14,881,284 | 1975 | 14,456,695 | 1974 | 13,904,130 | 1973 | 13,413,643 | 1972 | 12,906,953 | 1971 | 12,527,096 | 1970 | 12,562,418 | 1969 | 12,785,852 | 1968 | 12,900,690 | 1967 | 13,037,020 | 1966 | 13,174,195 | 1965 | 13,191,370 | 1964 | 13,130,759 | 1963 | 13,058,236 | 1962 | 13,007,863 | 1961 | 13,002,063 | 1960 | 13,060,979 |
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