Year | Value | 2022 | 58,911,553 | 2021 | 59,006,829 | 2020 | 60,694,885 | 2019 | 62,244,673 | 2018 | 62,697,879 | 2017 | 61,866,695 | 2016 | 60,517,548 | 2015 | 58,822,102 | 2014 | 56,652,719 | 2013 | 54,243,091 | 2012 | 51,411,284 | 2011 | 48,393,935 | 2010 | 45,420,152 | 2009 | 42,512,433 | 2008 | 40,089,200 | 2007 | 38,112,651 | 2006 | 36,807,589 | 2005 | 36,046,315 | 2004 | 35,404,714 | 2003 | 34,809,996 | 2002 | 34,340,357 | 2001 | 33,864,951 | 2000 | 33,478,045 | 1999 | 33,287,135 | 1998 | 33,113,701 | 1997 | 32,707,318 | 1996 | 32,005,967 | 1995 | 31,152,047 | 1994 | 30,269,957 | 1993 | 29,364,856 | 1992 | 28,510,163 | 1991 | 27,728,208 | 1990 | 27,023,897 | 1989 | 26,426,984 | 1988 | 25,782,933 | 1987 | 25,070,362 | 1986 | 24,450,673 | 1985 | 23,843,657 | 1984 | 23,102,523 | 1983 | 22,321,744 | 1982 | 21,678,263 | 1981 | 21,160,603 | 1980 | 20,667,942 | 1979 | 20,280,170 | 1978 | 20,007,337 | 1977 | 19,641,548 | 1976 | 19,142,854 | 1975 | 18,638,582 | 1974 | 18,183,878 | 1973 | 17,755,180 | 1972 | 17,388,707 | 1971 | 17,097,777 | 1970 | 16,791,541 | 1969 | 16,440,753 | 1968 | 16,084,214 | 1967 | 15,788,730 | 1966 | 15,481,086 | 1965 | 15,097,709 | 1964 | 14,660,303 | 1963 | 14,197,596 | 1962 | 13,739,618 | 1961 | 13,391,000 | 1960 | 13,265,753 |
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