Year	% net
2000	63.96509
2001	66.70693
2002	70.9484
2003	73.55365
2004	75.5275
2005	75.6866
2006	74.76722
2007	73.28759
2008	71.85467
2009	72.27169
2010	72.19899
2011	71.6485
2012	72.67105
2013	74.36865
2014	75.09297
2015	76.16133
2016	76.50583
2017	75.78534
2018	76.15256