Year	% of revenue
2008	0.9190479317231504
2009	1.091296855333113
2010	1.0009118076810029
2011	0.6590198945837877
2012	0.9757431989583943
2013	0.9263291603252976
2014	0.8369433266014467
2015	1.014798921861309
2016	1.063993383305672
2017	1.108804719137084
2018	1.0950791590659312
2019	0.9143206519680114
2020	0.9800480364151551
2021	1.1134683204751532