Year	Total
1971	651100000
1972	696100000
1973	732100000
1974	777100000
1975	820100000
1976	851200000
1977	849200000
1978	873200000
1979	890200000
1980	928200000
1981	991200000
1982	988200000
1983	927200000
1984	926200000
1985	1222000000
1986	1278000000
1987	1299000000
1988	1363000000
1989	1447000000
1990	1524000000
1991	1544000000
1992	1572000000
1993	1566000000
1994	1608000000
1995	1672000000
1996	1831000000
1997	1991000000
1998	2098000000
1999	2230000000
2000	2316000000
2001	2349000000
2002	2487000000
2003	2728000000
2004	2885000000
2005	3462000000
2006	3461000000
2007	3685000000
2008	3689000000