Year	% of output
1960	9.911190053285967
1961	9.39887080704085
1962	9.241573033707866
1963	10.595028872709014
1964	10.267355650415636
1965	10.054512416717142
1966	10.502612141956403
1967	10.964417968121074
1968	11.490772779700114
1969	10.691502934422047
1970	10.054505392554795
1971	10.558666248504304
1972	10.544298521432646
1973	10.56070033643023
1974	10.533595870565145
1975	10.550998646889195
1976	10.698697983686717
1977	10.66269040302099
1978	10.887474668624817
1979	10.9997816320176
1980	11.188214394592336
1981	11.499732204952476
1982	11.476627068796972
1983	11.439284386878343
1984	11.50690841645005
1985	11.604697782862631
1986	11.41792639645015
1987	11.898821696534917
1988	11.656356303119887
1989	11.970601423335998
1990	10.240861878781603
1991	10.60798564241791
1992	10.8595359478147
1993	11.427821618300962
1994	11.591383386133469
1995	11.950280518160753
1996	12.388329196901111
1997	12.52631315318692
1998	12.966077230187679
1999	13.478282233996065
2000	13.579947764804905
2001	13.658258686480274
2002	13.384745610851557
2003	12.866188099142555
2004	12.509407592989419
2005	12.36828397679642
2006	11.803671967416136
2007	11.292639266620107
2008	11.11816717282005
2009	11.024952902009803
2010	10.568553682680951
2011	10.15122782485877
2012	10.197281182906769
2013	10.103209149528139
2014	10.021714141201375