Year | Value | 2022 | 11,935,056 | 2021 | 11,923,080 | 2020 | 11,782,714 | 2019 | 11,708,079 | 2018 | 11,686,574 | 2017 | 11,748,254 | 2016 | 11,881,035 | 2015 | 12,087,799 | 2014 | 12,362,361 | 2013 | 12,669,918 | 2012 | 13,039,639 | 2011 | 13,507,820 | 2010 | 14,009,116 | 2009 | 14,538,017 | 2008 | 15,114,850 | 2007 | 15,688,847 | 2006 | 16,192,734 | 2005 | 16,526,628 | 2004 | 16,731,820 | 2003 | 16,852,330 | 2002 | 16,788,359 | 2001 | 16,520,539 | 2000 | 16,225,823 | 1999 | 15,937,874 | 1998 | 15,620,694 | 1997 | 15,338,857 | 1996 | 15,158,624 | 1995 | 15,017,150 | 1994 | 14,885,541 | 1993 | 14,757,785 | 1992 | 14,648,561 | 1991 | 14,511,539 | 1990 | 14,302,518 | 1989 | 14,068,473 | 1988 | 13,863,512 | 1987 | 13,653,858 | 1986 | 13,467,653 | 1985 | 13,413,794 | 1984 | 13,489,886 | 1983 | 13,660,213 | 1982 | 13,926,949 | 1981 | 14,263,393 | 1980 | 14,573,887 | 1979 | 14,789,872 | 1978 | 14,879,868 | 1977 | 14,869,309 | 1976 | 14,759,799 | 1975 | 14,599,613 | 1974 | 14,486,390 | 1973 | 14,370,910 | 1972 | 14,147,904 | 1971 | 13,880,242 | 1970 | 13,561,830 | 1969 | 13,231,223 | 1968 | 12,860,953 | 1967 | 12,413,206 | 1966 | 11,941,083 | 1965 | 11,152,009 | 1964 | 9,996,340 | 1963 | 8,858,805 | 1962 | 8,067,952 | 1961 | 7,865,577 | 1960 | 8,376,289 |
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