Year | Value | 2022 | 29,228,289 | 2021 | 28,742,769 | 2020 | 28,017,949 | 2019 | 27,286,614 | 2018 | 26,564,068 | 2017 | 25,859,271 | 2016 | 25,161,135 | 2015 | 24,460,446 | 2014 | 23,763,736 | 2013 | 23,071,685 | 2012 | 22,393,861 | 2011 | 21,741,810 | 2010 | 21,108,240 | 2009 | 20,483,469 | 2008 | 19,881,968 | 2007 | 19,312,247 | 2006 | 18,752,180 | 2005 | 18,199,387 | 2004 | 17,697,649 | 2003 | 17,256,621 | 2002 | 16,845,718 | 2001 | 16,462,902 | 2000 | 16,121,941 | 1999 | 15,788,409 | 1998 | 15,434,754 | 1997 | 15,073,906 | 1996 | 14,738,459 | 1995 | 14,398,173 | 1994 | 13,990,679 | 1993 | 13,593,706 | 1992 | 13,244,571 | 1991 | 12,910,919 | 1990 | 12,611,914 | 1989 | 12,266,675 | 1988 | 11,933,987 | 1987 | 11,609,650 | 1986 | 11,298,264 | 1985 | 10,959,754 | 1984 | 10,606,244 | 1983 | 10,305,884 | 1982 | 10,040,875 | 1981 | 9,845,143 | 1980 | 9,769,103 | 1979 | 9,747,977 | 1978 | 9,763,311 | 1977 | 9,812,392 | 1976 | 9,767,915 | 1975 | 9,604,867 | 1974 | 9,360,968 | 1973 | 9,034,748 | 1972 | 8,698,792 | 1971 | 8,430,151 | 1970 | 8,281,707 | 1969 | 8,232,277 | 1968 | 8,235,903 | 1967 | 8,227,687 | 1966 | 8,154,745 | 1965 | 7,996,950 | 1964 | 7,782,232 | 1963 | 7,537,309 | 1962 | 7,266,698 | 1961 | 7,006,064 | 1960 | 6,771,933 |
|