Year	% gross
2011	14.0674800872803
2013	14.5862998962402
2014	13.7497501373291
2015	15.3987998962402
2016	15.9828100204468
2017	22.8973999023438
2018	25.6837005615234
2019	24.1838207244873
2020	26.9909591674805
2021	24.6711502075195