Year	Total
1980	934200000
1981	955200000
1982	1030000000
1983	1093000000
1984	1240000000
1985	1409000000
1986	1583000000
1987	1791000000
1988	1957000000
1989	2560000000
1990	2304000000
1991	2392000000
1992	2541000000
1993	3082000000
1994	3965000000
1995	5106000000
1996	6279000000
1997	7383000000
1998	9006000000
1999	9852000000
2000	11140000000
2001	12810000000
2002	14560000000
2003	15990000000
2004	18220000000
2005	19470000000
2006	21650000000
2007	23480000000
2008	26070000000