Year	% net
1994	93.37603
1998	93.33621
1999	90.46345
2000	89.34299
2001	86.45276
2007	98.36925
2009	98.27358
2010	95.36821
2011	93.83626
2012	94.79364
2014	96.01723
2015	95.93403
2016	94.86556
2017	94.46785
2018	94.41308