Year	% net
1999	30.14992
2000	32.3995
2001	37.0451
2002	37.01062
2003	37.60182
2004	41.93248
2005	41.79047
2006	43.81816
2007	43.63949
2009	44.63794
2010	44.15899
2014	48.46006
2016	54.12075
2017	57.24047
2018	61.49661