Year	% net
1984	36.89737
2000	67.9226
2001	67.96428
2002	72.74333
2003	71.89572
2004	75.54589
2005	72.81704
2008	91.41352
2009	89.847
2010	85.59002
2013	85.54762
2014	87.38822
2015	84.82507
2016	89.72899
2017	90.47261
2018	89.47196