Year | Value | 2022 | 44,714,592 | 2021 | 44,426,789 | 2020 | 44,134,884 | 2019 | 43,792,157 | 2018 | 43,333,952 | 2017 | 42,789,954 | 2016 | 42,200,628 | 2015 | 41,454,741 | 2014 | 40,556,060 | 2013 | 39,818,340 | 2012 | 39,262,182 | 2011 | 38,783,336 | 2010 | 38,301,112 | 2009 | 37,767,957 | 2008 | 37,258,400 | 2007 | 36,750,402 | 2006 | 36,210,381 | 2005 | 35,630,982 | 2004 | 35,028,219 | 2003 | 34,429,317 | 2002 | 34,099,104 | 2001 | 33,786,412 | 2000 | 33,235,518 | 1999 | 32,715,378 | 1998 | 32,223,035 | 1997 | 31,746,786 | 1996 | 31,320,559 | 1995 | 30,931,127 | 1994 | 30,536,539 | 1993 | 30,430,313 | 1992 | 30,246,675 | 1991 | 29,563,662 | 1990 | 28,471,683 | 1989 | 27,404,071 | 1988 | 26,653,409 | 1987 | 25,893,396 | 1986 | 25,105,248 | 1985 | 24,301,374 | 1984 | 23,495,289 | 1983 | 22,714,605 | 1982 | 21,978,956 | 1981 | 20,901,475 | 1980 | 19,842,442 | 1979 | 19,178,716 | 1978 | 18,560,428 | 1977 | 17,986,094 | 1976 | 17,454,256 | 1975 | 16,943,349 | 1974 | 16,442,594 | 1973 | 15,972,140 | 1972 | 15,522,988 | 1971 | 15,089,953 | 1970 | 14,664,691 | 1969 | 14,248,693 | 1968 | 13,850,883 | 1967 | 13,464,371 | 1966 | 13,080,068 | 1965 | 12,696,479 | 1964 | 12,319,448 | 1963 | 11,957,997 | 1962 | 11,614,756 | 1961 | 11,288,130 | 1960 | 10,975,523 |
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