Year	% net
1995	92.89367
1996	94.66166
1997	95.14155
1998	95.34454
1999	94.22529
2000	94.81067
2001	93.97547
2002	94.52079
2003	95.70861
2004	98.02614
2007	97.66424
2008	98.02654
2009	98.2722
2010	98.6308
2011	99.03607
2013	99.00584
2014	98.82186