Year	% of revenue
2010	93.23676257604204
2011	94.74734459030184
2012	94.37978976957764
2013	93.35871921874634
2014	92.44275535720638
2015	86.647494507862
2016	84.2165436836147
2017	87.36045910554587
2018	70.93678448966794
2019	76.26522334963514
2020	70.98870538118706
2021	67.15588804215261
2022	74.52268316092065