Year	% net
1999	29.66754
2000	32.95794
2001	35.76385
2002	35.51076
2003	36.09419
2004	40.44941
2005	41.00243
2006	43.17034
2007	43.45929
2008	45.29753
2009	44.79402
2010	45.05213
2014	48.71663
2016	56.31635
2017	59.62371
2018	64.05857