Year	% net
1995	91.41798
1996	98.29222
1997	99.86955
2004	93.55358
2005	92.75616
2006	91.67211
2007	94.73061
2008	98.30193
2009	96.56654
2011	97.24953
2012	98.51891
2013	99.28296
2014	99.10612
2015	99.58342
2016	97.8812
2017	97.91476
2018	96.43624