Year	% net
1995	81.91029
1996	85.23354
1997	86.27843
1998	87.53176
1999	88.71997
2000	90.55959
2001	91.91056
2002	90.01151
2003	82.8347
2004	86.88546
2005	88.05074
2006	91.58423
2007	88.482
2012	96.4668
2013	93.73568
2014	93.84402
2015	95.22082