Year | Value | 2022 | 25,388,140 | 2021 | 25,266,119 | 2020 | 25,119,193 | 2019 | 24,957,981 | 2018 | 24,789,366 | 2017 | 24,603,742 | 2016 | 24,388,710 | 2015 | 24,142,575 | 2014 | 23,866,094 | 2013 | 23,556,927 | 2012 | 23,208,315 | 2011 | 22,827,920 | 2010 | 22,432,216 | 2009 | 22,047,603 | 2008 | 21,663,831 | 2007 | 21,297,864 | 2006 | 20,946,351 | 2005 | 20,608,252 | 2004 | 20,276,987 | 2003 | 19,949,854 | 2002 | 19,640,641 | 2001 | 19,359,607 | 2000 | 19,104,442 | 1999 | 18,873,512 | 1998 | 18,646,864 | 1997 | 18,392,447 | 1996 | 18,097,174 | 1995 | 17,756,649 | 1994 | 17,369,012 | 1993 | 16,943,880 | 1992 | 16,497,035 | 1991 | 16,039,366 | 1990 | 15,579,037 | 1989 | 15,127,591 | 1988 | 14,679,628 | 1987 | 14,227,348 | 1986 | 13,780,496 | 1985 | 13,340,376 | 1984 | 12,901,413 | 1983 | 12,448,821 | 1982 | 11,983,295 | 1981 | 11,519,749 | 1980 | 11,062,141 | 1979 | 10,624,908 | 1978 | 10,231,651 | 1977 | 9,886,988 | 1976 | 9,585,012 | 1975 | 9,315,214 | 1974 | 9,060,609 | 1973 | 8,813,476 | 1972 | 8,571,056 | 1971 | 8,338,433 | 1970 | 8,138,421 | 1969 | 7,975,209 | 1968 | 7,837,549 | 1967 | 7,721,706 | 1966 | 7,615,315 | 1965 | 7,509,025 | 1964 | 7,400,925 | 1963 | 7,287,380 | 1962 | 7,160,832 | 1961 | 7,017,431 | 1960 | 6,861,111 |
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