Year current LCU 1972 15000 1973 37000 1974 94000 1975 90000 1976 269000 1977 476000 1978 698000 1979 1318000 1980 1524000 1981 2137000 1982 2704000 1983 3007000 1984 2827000 1985 3861000 1986 7221000 1987 21035000 1988 46370000 1989 88000000 1990 151000000 1991 248000000 1992 389000000 1993 977000000 1994 2052000000 1995 2052000000 1996 2195000000 1997 2382000000 1998 3063000000 1999 2573000000 2000 3157000000 2001 4387556468.09187 2002 3700792573.306 2003 4074042445.818 2004 5645856000 2005 5542217000 2006 6625884192.985 2007 8517593319.32668 2008 11576485705.9512 2009 11213645283.891 2010 11213645283.891 2011 13589502717.3481 2012 15073151772.622 2013 16571467973 2014 18439305365.581 2015 17939000000 2016 21700000000