Year	Total
1971	47010000
1972	47010000
1973	47010000
1974	58010000
1975	81010000
1976	69010000
1977	94020000
1978	94020000
1979	94020000
1980	116000000
1981	123000000
1982	132000000
1983	129000000
1984	131000000
1985	138000000
1986	126000000
1987	139000000
1988	146000000
1989	159000000
1990	155000000
1991	127000000
1992	109000000
1993	103000000
1994	65010000
1995	108000000
1996	116000000
1997	81010000
1998	116000000
1999	128000000
2000	116000000
2001	116000000
2002	93020000
2003	93020000
2004	105000000
2005	107000000
2006	109000000
2007	86020000
2008	80010000