Year Total 1985 460410000000 1986 470690000000 1987 497830000000 1988 505970000000 1989 495330000000 1990 478180000000 1991 502720000000 1992 514690000000.00006 1993 524659999999.99994 1994 547809999999.99994 1995 551340000000 1996 566080000000 1997 569030000000 1998 558730000000 1999 573090000000 2000 599240000000 2001 581830000000 2002 594830000000 2003 580240000000 2004 587110000000 2005 613040000000 2006 601500000000 2007 625560000000 2008 627670000000 2009 604200000000 2010 596650000000 2011 628560000000 2012 629010000000 2013 651190000000 2014 648630000000 2015 652280000000 2016 663010000000