Year | Value | 2022 | 74,604,726 | 2021 | 77,362,587 | 2020 | 80,076,045 | 2019 | 82,157,349 | 2018 | 83,197,828 | 2017 | 82,924,114 | 2016 | 81,712,034 | 2015 | 80,444,844 | 2014 | 79,169,729 | 2013 | 78,557,851 | 2012 | 78,019,163 | 2011 | 74,629,470 | 2010 | 68,923,035 | 2009 | 63,372,303 | 2008 | 57,995,965 | 2007 | 54,670,241 | 2006 | 54,984,286 | 2005 | 56,965,588 | 2004 | 58,793,737 | 2003 | 59,426,018 | 2002 | 58,576,919 | 2001 | 57,114,652 | 2000 | 55,246,545 | 1999 | 52,757,572 | 1998 | 49,963,752 | 1997 | 46,852,375 | 1996 | 43,819,904 | 1995 | 41,080,629 | 1994 | 38,530,249 | 1993 | 36,474,934 | 1992 | 34,790,012 | 1991 | 33,608,580 | 1990 | 32,925,772 | 1989 | 32,468,119 | 1988 | 32,187,836 | 1987 | 32,105,352 | 1986 | 31,961,344 | 1985 | 31,764,179 | 1984 | 31,667,935 | 1983 | 31,552,567 | 1982 | 31,171,869 | 1981 | 30,549,274 | 1980 | 29,906,450 | 1979 | 29,224,688 | 1978 | 28,404,914 | 1977 | 27,625,728 | 1976 | 26,927,629 | 1975 | 26,240,658 | 1974 | 25,654,599 | 1973 | 25,030,802 | 1972 | 24,310,665 | 1971 | 23,718,384 | 1970 | 23,148,101 | 1969 | 22,470,387 | 1968 | 21,809,187 | 1967 | 21,300,890 | 1966 | 20,881,289 | 1965 | 20,501,815 | 1964 | 20,350,493 | 1963 | 20,396,038 | 1962 | 20,299,496 | 1961 | 20,112,502 | 1960 | 20,056,635 |
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