Year | Value | 2022 | 15,901,334 | 2021 | 15,664,025 | 2020 | 15,368,183 | 2019 | 15,128,288 | 2018 | 14,952,540 | 2017 | 14,777,629 | 2016 | 14,601,718 | 2015 | 14,447,479 | 2014 | 14,323,121 | 2013 | 14,216,663 | 2012 | 14,118,638 | 2011 | 14,016,343 | 2010 | 13,901,487 | 2009 | 13,776,271 | 2008 | 13,645,445 | 2007 | 13,505,086 | 2006 | 13,353,440 | 2005 | 13,186,397 | 2004 | 13,001,504 | 2003 | 12,802,557 | 2002 | 12,593,963 | 2001 | 12,380,071 | 2000 | 12,161,850 | 1999 | 11,936,189 | 1998 | 11,701,802 | 1997 | 11,462,922 | 1996 | 11,220,566 | 1995 | 10,973,325 | 1994 | 10,715,317 | 1993 | 10,453,021 | 1992 | 10,174,760 | 1991 | 9,896,916 | 1990 | 9,647,920 | 1989 | 9,417,638 | 1988 | 9,205,996 | 1987 | 9,006,715 | 1986 | 8,811,491 | 1985 | 8,616,093 | 1984 | 8,421,469 | 1983 | 8,228,195 | 1982 | 8,039,432 | 1981 | 7,857,673 | 1980 | 7,680,285 | 1979 | 7,506,706 | 1978 | 7,338,298 | 1977 | 7,175,780 | 1976 | 7,021,275 | 1975 | 6,873,092 | 1974 | 6,728,597 | 1973 | 6,588,641 | 1972 | 6,451,851 | 1971 | 6,318,053 | 1970 | 6,186,019 | 1969 | 6,056,271 | 1968 | 5,930,668 | 1967 | 5,808,253 | 1966 | 5,690,731 | 1965 | 5,577,258 | 1964 | 5,467,133 | 1963 | 5,361,901 | 1962 | 5,260,605 | 1961 | 5,162,219 | 1960 | 5,067,776 |
|