Year	Total
1980	405000000
1981	418500000
1982	432900000
1983	459000000
1984	468000000
1985	560700000
1986	571500000
1987	563400000
1988	585900000
1989	585000000
1990	577800000
1991	680400000
1992	573300000
1993	585900000
1994	532800000
1995	536400000
1996	530100000
1997	535500000
1998	550800000
1999	631800000
2000	609300000
2001	670500000
2002	684000000
2003	711000000
2004	718200000
2005	766800000
2006	762300000
2007	718200000
2008	653931000
2009	624222000
2010	591624000
2011	586377000
2012	579159000
2013	520866000
2014	488304000
2015	407574000
2016	407574000