Year	% net
2000	62.3867
2001	65.13454
2002	69.4617
2003	72.04412
2004	74.14804
2005	74.68435
2006	74.05262
2007	73.1655
2008	72.09962
2009	72.78282
2010	72.78318
2011	72.385
2012	73.56987
2013	75.20722
2014	75.86576
2015	76.68761
2016	76.9402
2017	76.1901
2018	76.55438