Year	% net
1992	6.54573
1993	6.5713
1994	6.37535
1995	6.63792
1999	2.76722
2000	3.27968
2001	3.51725
2002	4.36667
2004	4.13627
2005	7.07607
2006	8.96287
2007	10.58298
2008	12.21686
2009	14.57866
2010	15.97046
2011	17.0661
2012	17.45519
2013	19.89826
2014	20.22234
2015	19.27829