Year Total 1990 107000000000 1991 116200000000 1992 115800000000 1993 121200000000 1994 126100000000 1995 126100000000 1996 132000000000 1997 133000000000 1998 134600000000 1999 140100000000 2000 140700000000 2001 142600000000 2002 142700000000 2003 142300000000 2004 143300000000 2005 108900000000 2006 112500000000 2007 116000000000 2008 117200000000