Year | Value | 2022 | 78,252,578 | 2021 | 76,822,398 | 2020 | 75,402,666 | 2019 | 74,174,738 | 2018 | 72,964,210 | 2017 | 71,087,449 | 2016 | 69,300,428 | 2015 | 68,701,234 | 2014 | 69,264,398 | 2013 | 71,219,415 | 2012 | 74,022,760 | 2011 | 76,883,174 | 2010 | 79,811,749 | 2009 | 82,190,260 | 2008 | 83,536,228 | 2007 | 83,528,138 | 2006 | 82,571,577 | 2005 | 81,511,538 | 2004 | 80,377,476 | 2003 | 79,878,895 | 2002 | 79,409,423 | 2001 | 76,027,473 | 2000 | 70,249,824 | 1999 | 64,542,716 | 1998 | 58,959,410 | 1997 | 55,442,747 | 1996 | 55,564,192 | 1995 | 57,379,455 | 1994 | 59,092,139 | 1993 | 59,666,755 | 1992 | 58,856,673 | 1991 | 57,477,666 | 1990 | 55,758,802 | 1989 | 53,442,767 | 1988 | 50,705,431 | 1987 | 47,505,919 | 1986 | 44,342,682 | 1985 | 41,498,386 | 1984 | 38,846,333 | 1983 | 36,710,231 | 1982 | 35,022,033 | 1981 | 33,839,892 | 1980 | 33,031,178 | 1979 | 32,419,358 | 1978 | 31,986,104 | 1977 | 31,737,536 | 1976 | 31,532,852 | 1975 | 31,415,687 | 1974 | 31,455,332 | 1973 | 31,489,823 | 1972 | 31,283,270 | 1971 | 30,766,278 | 1970 | 30,088,861 | 1969 | 29,380,669 | 1968 | 28,637,777 | 1967 | 27,934,977 | 1966 | 27,271,823 | 1965 | 26,656,603 | 1964 | 26,258,646 | 1963 | 25,902,078 | 1962 | 25,414,386 | 1961 | 25,114,367 | 1960 | 24,985,768 |
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