Year	% of output
1985	6.120295462539572
1986	5.709779179810726
1987	7.405195580770379
1988	7.844243792325056
1989	7.869589657110736
1990	9.647550776583035
1991	10.529575720037162
1992	9.730283373164902
1993	11.270333075135554
1994	17.384898710865563
1995	19.101978691019784
1996	18.439173680183625
1997	18.519909842223893
1998	17.38317757009346
1999	17.909922589725547
2000	19.551934826883908
2001	19.986741796486577
2002	18.73393316195373
2003	15.583173996175908
2004	14.532243415077204
2005	12.284293653114945
2006	12.471783295711061
2007	11.94271818427452
2008	10.89727568107973
2009	12.230750185689528
2010	11.708787386969627
2011	14.19753086419753
2012	14.01578073089701
2013	14.741035856573706
2014	14.750744047619047