Year	% net
1995	88.16409
2001	95.5913
2002	92.53704
2003	93.07121
2004	91.53975
2005	89.60983
2006	89.71155
2007	89.59185
2010	91.05012
2011	90.70014
2012	93.98101
2013	93.23412
2014	93.11386
2015	93.96598
2016	96.08237
2017	95.61727
2018	94.92861