Year | Value | 2022 | 26,298,417 | 2021 | 26,101,321 | 2020 | 25,791,075 | 2019 | 25,408,106 | 2018 | 24,945,907 | 2017 | 24,477,100 | 2016 | 24,107,989 | 2015 | 23,847,355 | 2014 | 23,617,367 | 2013 | 23,387,544 | 2012 | 23,149,997 | 2011 | 22,903,701 | 2010 | 22,648,175 | 2009 | 22,387,951 | 2008 | 22,128,690 | 2007 | 21,863,668 | 2006 | 21,586,300 | 2005 | 21,300,552 | 2004 | 21,004,780 | 2003 | 20,699,708 | 2002 | 20,387,506 | 2001 | 20,068,231 | 2000 | 19,745,251 | 1999 | 19,418,369 | 1998 | 19,086,068 | 1997 | 18,747,884 | 1996 | 18,406,405 | 1995 | 18,063,500 | 1994 | 17,714,470 | 1993 | 17,362,186 | 1992 | 17,012,155 | 1991 | 16,666,875 | 1990 | 16,319,819 | 1989 | 15,970,252 | 1988 | 15,627,949 | 1987 | 15,293,772 | 1986 | 14,966,988 | 1985 | 14,646,986 | 1984 | 14,326,594 | 1983 | 14,001,947 | 1982 | 13,682,869 | 1981 | 13,373,253 | 1980 | 13,068,691 | 1979 | 12,771,020 | 1978 | 12,484,354 | 1977 | 12,206,091 | 1976 | 11,942,621 | 1975 | 11,690,305 | 1974 | 11,439,917 | 1973 | 11,191,768 | 1972 | 10,945,364 | 1971 | 10,701,994 | 1970 | 10,455,025 | 1969 | 10,201,733 | 1968 | 9,945,164 | 1967 | 9,684,298 | 1966 | 9,421,433 | 1965 | 9,156,915 | 1964 | 8,891,960 | 1963 | 8,630,444 | 1962 | 8,373,228 | 1961 | 8,121,112 | 1960 | 7,875,810 |
|