Year	Total
1983	14800000000
1984	16920000000
1985	19490000000
1986	21110000000
1987	24080000000
1988	25390000000
1989	26880000000
1990	28960000000
1991	29880000000
1992	33990000000
1993	38480000000
1994	40550000000
1995	42160000000
1996	43260000000
1997	45350000000
1998	50990000000
1999	53650000000
2000	56070000000
2001	61350000000
2002	65470000000
2003	70390000000
2004	73380000000
2005	78320000000
2006	86040000000
2007	89920000000
2008	96700000000