Year	Total
1980	73800000
1981	73800000
1982	73800000
1983	88200000
1984	92700000
1985	81900000
1986	63900000
1987	63000000
1988	71100000
1989	97200000
1990	89100000
1991	90900000
1992	116100000
1993	113400000
1994	111600000
1995	108000000
1996	102600000
1997	99900000
1998	93600000
1999	127800000
2000	129600000
2001	126900000
2002	116100000
2003	122400000
2004	118800000
2005	109800000
2006	108000000
2007	62100000
2008	49500000
2009	57600000
2010	46800000
2011	38700000
2012	34200000
2013	33300000
2014	31500000
2015	15300000
2016	11700000