Year	% net
2000	47.39215
2001	49.15542
2002	52.85267
2005	57.7526
2006	56.98511
2007	57.11688
2008	57.8461
2009	59.33767
2010	61.71153
2011	63.77506
2012	65.69178
2013	67.69709
2014	67.48863
2015	66.13285
2016	64.81167
2017	60.83482
2018	62.55455