Year | Value | 2022 | 26,799,750 | 2021 | 26,466,645 | 2020 | 26,076,625 | 2019 | 25,635,888 | 2018 | 25,089,127 | 2017 | 24,563,784 | 2016 | 24,140,046 | 2015 | 23,757,776 | 2014 | 23,425,055 | 2013 | 23,126,579 | 2012 | 22,848,874 | 2011 | 22,584,945 | 2010 | 22,340,162 | 2009 | 22,117,000 | 2008 | 21,907,680 | 2007 | 21,679,951 | 2006 | 21,405,293 | 2005 | 21,120,020 | 2004 | 20,821,131 | 2003 | 20,510,054 | 2002 | 20,186,530 | 2001 | 19,841,910 | 2000 | 19,468,935 | 1999 | 19,067,264 | 1998 | 18,644,890 | 1997 | 18,211,840 | 1996 | 17,778,086 | 1995 | 17,346,849 | 1994 | 16,913,233 | 1993 | 16,480,645 | 1992 | 16,063,240 | 1991 | 15,650,023 | 1990 | 15,233,390 | 1989 | 14,812,437 | 1988 | 14,397,870 | 1987 | 13,991,823 | 1986 | 13,595,630 | 1985 | 13,203,373 | 1984 | 12,815,119 | 1983 | 12,431,594 | 1982 | 12,055,425 | 1981 | 11,688,660 | 1980 | 11,295,546 | 1979 | 10,911,055 | 1978 | 10,538,980 | 1977 | 10,175,915 | 1976 | 9,827,343 | 1975 | 9,490,498 | 1974 | 9,158,828 | 1973 | 8,832,460 | 1972 | 8,510,717 | 1971 | 8,137,945 | 1970 | 7,785,615 | 1969 | 7,440,524 | 1968 | 7,090,372 | 1967 | 6,752,060 | 1966 | 6,425,773 | 1965 | 6,110,870 | 1964 | 5,807,197 | 1963 | 5,515,438 | 1962 | 5,235,676 | 1961 | 4,966,408 | 1960 | 4,761,712 |
|