Year | Value | 2022 | 35,738,037 | 2021 | 35,514,081 | 2020 | 35,766,709 | 2019 | 36,000,597 | 2018 | 36,183,969 | 2017 | 36,353,513 | 2016 | 36,553,898 | 2015 | 36,733,333 | 2014 | 36,915,386 | 2013 | 37,157,692 | 2012 | 37,494,625 | 2011 | 37,925,537 | 2010 | 38,429,522 | 2009 | 38,762,109 | 2008 | 38,870,850 | 2007 | 38,761,597 | 2006 | 38,509,295 | 2005 | 38,245,101 | 2004 | 38,099,541 | 2003 | 38,080,048 | 2002 | 38,172,425 | 2001 | 38,363,350 | 2000 | 38,639,170 | 1999 | 38,926,531 | 1998 | 39,086,686 | 1997 | 39,079,965 | 1996 | 38,936,228 | 1995 | 38,789,670 | 1994 | 38,776,317 | 1993 | 38,897,501 | 1992 | 39,173,364 | 1991 | 39,636,867 | 1990 | 40,178,085 | 1989 | 40,637,595 | 1988 | 40,959,292 | 1987 | 41,205,865 | 1986 | 41,167,394 | 1985 | 41,064,506 | 1984 | 41,231,901 | 1983 | 41,486,900 | 1982 | 41,653,248 | 1981 | 41,844,421 | 1980 | 41,946,968 | 1979 | 41,771,481 | 1978 | 41,453,723 | 1977 | 41,115,133 | 1976 | 40,755,083 | 1975 | 40,361,994 | 1974 | 39,923,393 | 1973 | 39,448,970 | 1972 | 38,974,919 | 1971 | 38,707,385 | 1970 | 38,256,530 | 1969 | 37,730,033 | 1968 | 37,513,452 | 1967 | 37,489,964 | 1966 | 37,054,029 | 1965 | 36,033,010 | 1964 | 34,870,519 | 1963 | 33,649,914 | 1962 | 32,290,606 | 1961 | 31,057,900 | 1960 | 30,608,535 |
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