Year	% net
1992	4.96208
1993	5.03331
1994	4.90924
1995	5.20334
1999	2.27494
2000	2.6864
2001	2.88699
2002	3.65825
2004	3.61007
2005	6.19617
2006	8.01473
2007	9.48448
2008	11.10996
2009	13.5091
2010	14.97363
2011	16.36
2012	16.93053
2013	19.352
2014	19.86617
2015	19.3244