Year | Value | 2022 | 75,275,457 | 2021 | 71,994,698 | 2020 | 66,444,990 | 2019 | 61,009,254 | 2018 | 55,763,848 | 2017 | 52,507,851 | 2016 | 52,701,831 | 2015 | 54,510,146 | 2014 | 56,236,435 | 2013 | 56,856,335 | 2012 | 56,086,142 | 2011 | 54,736,569 | 2010 | 53,054,264 | 2009 | 50,788,266 | 2008 | 48,149,376 | 2007 | 45,092,099 | 2006 | 42,069,410 | 2005 | 39,307,457 | 2004 | 36,690,156 | 2003 | 34,583,790 | 2002 | 32,901,866 | 2001 | 31,692,044 | 2000 | 30,844,596 | 1999 | 30,191,392 | 1998 | 29,686,320 | 1997 | 29,318,431 | 1996 | 28,948,859 | 1995 | 28,657,345 | 1994 | 28,521,159 | 1993 | 28,398,258 | 1992 | 28,082,664 | 1991 | 27,511,704 | 1990 | 26,848,473 | 1989 | 26,162,873 | 1988 | 25,419,872 | 1987 | 24,717,910 | 1986 | 24,073,887 | 1985 | 23,470,073 | 1984 | 22,970,727 | 1983 | 22,444,796 | 1982 | 21,844,969 | 1981 | 21,365,492 | 1980 | 20,911,766 | 1979 | 20,322,059 | 1978 | 19,701,100 | 1977 | 19,210,563 | 1976 | 18,823,550 | 1975 | 18,440,143 | 1974 | 18,135,148 | 1973 | 17,921,566 | 1972 | 17,609,827 | 1971 | 17,163,725 | 1970 | 16,721,594 | 1969 | 16,352,049 | 1968 | 16,029,807 | 1967 | 15,774,922 | 1966 | 15,615,531 | 1965 | 15,483,803 | 1964 | 15,325,436 | 1963 | 15,178,845 | 1962 | 15,033,109 | 1961 | 14,892,892 | 1960 | 14,782,942 |
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