Year	% of revenue
2011	0.00887635235520561
2012	0.007910035251010451
2013	0.21430085624850054
2014	0.25542782056401425
2015	0.2001580922704306
2016	0.18650820585134814
2017	0.07848343605653023
2018	0.03966593221550492
2019	0.05252274915976059
2020	0.015413194172138062
2021	0.016061119301962287
2022	0.01100812959677033