Year	% net
1999	77.5918
2000	77.75032
2002	80.60307
2003	81.06448
2004	79.77811
2005	78.06321
2006	80.60289
2008	81.50343
2011	77.95699
2013	70.79185
2014	69.31232
2017	62.83679
2018	63.52398