Year Total 1985 14040000000 1986 14820000000 1987 15637000000 1988 16915000000 1989 17811000000 1990 18398000000 1991 19963000000 1992 22350000000 1993 24013000000 1994 25276000000 1995 28027000000 1996 30791000000 1997 33292000000 1998 35495000000 1999 38384000000 2000 41268000000 2001 43917000000 2002 45483999999.99999 2003 48780000000 2004 52854000000 2005 54483000000.00001 2006 57555000000 2007 60138000000.00001 2008 60858000000.00001 2009 61038000000 2010 61608000000.00001 2011 65036999999.99999 2012 69729000000 2013 72970000000 2014 73598000000 2015 75425000000 2016 77464000000