Year	% net
1994	97.32543
1996	98.44095
1997	98.86128
1998	99.05044
2003	97.19316
2004	95.40354
2005	95.59117
2006	96.76469
2007	98.35124
2008	99.51226
2010	99.52137
2011	98.90912
2012	98.35787
2013	97.70874
2014	97.6539
2015	98.52406
2016	99.37185