Year	% of revenue
2014	10.863233428809291
2015	11.196395423790376
2016	10.813557225082382
2017	10.674646401797293
2018	11.212340080396418
2019	10.663194893926994
2020	12.507031715572452
2021	10.651106894903231
2022	17.798546504104518