Year	% gross
2010	25.3540000915527
2011	23.1359996795654
2012	23.9160003662109
2013	23.0841999053955
2014	23.673999786377
2015	19.0030002593994
2016	18.3209991455078
2017	16.5100002288818
2018	15.875
2019	15.2810001373291
2020	14.878999710083
2021	15.7449998855591
2022	15.9010000228882