Year | Value | 2022 | 26,184,672 | 2021 | 26,110,280 | 2020 | 26,016,411 | 2019 | 25,901,191 | 2018 | 25,792,807 | 2017 | 25,682,200 | 2016 | 25,533,449 | 2015 | 25,353,772 | 2014 | 25,159,980 | 2013 | 24,945,768 | 2012 | 24,711,600 | 2011 | 24,458,778 | 2010 | 24,182,505 | 2009 | 23,907,827 | 2008 | 23,613,461 | 2007 | 23,283,606 | 2006 | 22,923,144 | 2005 | 22,548,402 | 2004 | 22,155,333 | 2003 | 21,763,288 | 2002 | 21,387,984 | 2001 | 21,022,315 | 2000 | 20,669,301 | 1999 | 20,339,154 | 1998 | 20,020,139 | 1997 | 19,704,610 | 1996 | 19,407,789 | 1995 | 19,133,894 | 1994 | 18,874,368 | 1993 | 18,613,306 | 1992 | 18,332,223 | 1991 | 18,016,594 | 1990 | 17,662,199 | 1989 | 17,286,447 | 1988 | 16,896,768 | 1987 | 16,486,934 | 1986 | 16,063,677 | 1985 | 15,627,942 | 1984 | 15,183,790 | 1983 | 14,733,287 | 1982 | 14,283,786 | 1981 | 13,845,888 | 1980 | 13,417,846 | 1979 | 12,999,517 | 1978 | 12,576,087 | 1977 | 12,136,460 | 1976 | 11,701,640 | 1975 | 11,281,725 | 1974 | 10,872,700 | 1973 | 10,492,141 | 1972 | 10,158,301 | 1971 | 9,869,452 | 1970 | 9,604,541 | 1969 | 9,350,001 | 1968 | 9,108,019 | 1967 | 8,869,962 | 1966 | 8,636,934 | 1965 | 8,410,148 | 1964 | 8,189,099 | 1963 | 7,985,346 | 1962 | 7,805,130 | 1961 | 7,642,848 | 1960 | 7,501,085 |
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