Year	% of revenue
2012	0.5069411363919929
2013	0.36113140273515776
2014	0.526975038896072
2015	1.01211509884284
2016	0.41236535508396055
2017	0.5049580854733546
2018	0.4150434447817128
2019	0.36288544897725017