Year	% net
1986	67.59416
1988	77.12727
1989	77.40492
1992	79.83963
2002	94.40806
2003	95.0951
2004	93.07079
2005	91.94597
2007	91.65394
2008	100
2009	100
2010	94.94549
2011	95.88776
2012	79.28401
2013	97.95336
2014	95.91935
2015	98.0873
2016	99.6962