Year | Value | 2022 | 42,581,376 | 2021 | 42,175,029 | 2020 | 41,806,571 | 2019 | 41,414,465 | 2018 | 40,834,436 | 2017 | 40,292,386 | 2016 | 39,780,643 | 2015 | 39,256,041 | 2014 | 38,741,044 | 2013 | 38,226,425 | 2012 | 37,743,582 | 2011 | 37,271,275 | 2010 | 36,733,465 | 2009 | 36,184,302 | 2008 | 35,693,313 | 2007 | 35,249,438 | 2006 | 34,974,838 | 2005 | 34,529,813 | 2004 | 34,073,271 | 2003 | 33,617,545 | 2002 | 33,181,031 | 2001 | 32,724,349 | 2000 | 32,245,997 | 1999 | 31,782,313 | 1998 | 31,311,535 | 1997 | 30,832,295 | 1996 | 30,345,189 | 1995 | 29,857,344 | 1994 | 29,366,906 | 1993 | 28,866,917 | 1992 | 28,377,226 | 1991 | 27,893,784 | 1990 | 27,401,908 | 1989 | 26,899,089 | 1988 | 26,391,207 | 1987 | 25,885,337 | 1986 | 25,379,416 | 1985 | 24,863,070 | 1984 | 24,336,886 | 1983 | 23,805,208 | 1982 | 23,275,665 | 1981 | 22,801,335 | 1980 | 22,366,413 | 1979 | 21,943,637 | 1978 | 21,539,407 | 1977 | 21,128,018 | 1976 | 20,737,296 | 1975 | 20,332,644 | 1974 | 19,874,057 | 1973 | 19,395,566 | 1972 | 18,915,359 | 1971 | 18,436,259 | 1970 | 17,988,319 | 1969 | 17,575,692 | 1968 | 17,173,695 | 1967 | 16,764,033 | 1966 | 16,346,548 | 1965 | 15,954,435 | 1964 | 15,574,139 | 1963 | 15,181,288 | 1962 | 14,783,931 | 1961 | 14,395,443 | 1960 | 14,019,307 |
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