Year	% of revenue
2011	0.37061257068890596
2012	0.5305261431423127
2014	2.25008465638701
2015	2.3325383509843967
2016	4.033116028174156
2017	5.7794041605277116
2018	8.798145618371493
2019	6.461241766163401
2020	7.6775663109655845
2021	8.230942948104504