Year	% net
1991	87.09746
1992	87.84385
1993	89.8343
1994	90.40056
1995	90.68467
1996	87.20665
2008	90.66323
2009	89.86389
2010	90.52828
2011	89.75043
2013	87.538
2014	86.47525
2015	86.08828
2018	84.14559