Year | Value | 2022 | 47,778,340 | 2021 | 47,415,794 | 2020 | 47,365,655 | 2019 | 47,134,837 | 2018 | 46,797,754 | 2017 | 46,593,236 | 2016 | 46,484,062 | 2015 | 46,444,832 | 2014 | 46,480,882 | 2013 | 46,620,045 | 2012 | 46,773,055 | 2011 | 46,742,697 | 2010 | 46,576,897 | 2009 | 46,362,946 | 2008 | 45,954,106 | 2007 | 45,226,803 | 2006 | 44,397,319 | 2005 | 43,653,155 | 2004 | 42,921,895 | 2003 | 42,187,645 | 2002 | 41,431,558 | 2001 | 40,850,412 | 2000 | 40,567,864 | 1999 | 40,386,875 | 1998 | 40,223,509 | 1997 | 40,057,389 | 1996 | 39,889,852 | 1995 | 39,724,050 | 1994 | 39,549,108 | 1993 | 39,361,262 | 1992 | 39,157,685 | 1991 | 38,966,376 | 1990 | 38,867,322 | 1989 | 38,827,764 | 1988 | 38,766,939 | 1987 | 38,684,815 | 1986 | 38,584,624 | 1985 | 38,469,512 | 1984 | 38,330,364 | 1983 | 38,171,525 | 1982 | 37,986,012 | 1981 | 37,758,631 | 1980 | 37,491,165 | 1979 | 37,191,330 | 1978 | 36,864,898 | 1977 | 36,511,638 | 1976 | 36,137,812 | 1975 | 35,757,900 | 1974 | 35,373,335 | 1973 | 34,988,947 | 1972 | 34,604,469 | 1971 | 34,224,490 | 1970 | 33,814,531 | 1969 | 33,441,054 | 1968 | 33,113,134 | 1967 | 32,682,947 | 1966 | 32,283,194 | 1965 | 31,954,292 | 1964 | 31,609,195 | 1963 | 31,296,651 | 1962 | 31,023,366 | 1961 | 30,739,250 | 1960 | 30,455,000 |
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