Year	% gross
2006	19.7894592285156
2007	19.3645992279053
2008	19.0478897094727
2009	19.057710647583
2010	19.2600402832031
2011	19.647310256958
2012	20.4384593963623
2013	21.4404296875
2014	23.1597309112549
2015	25.4832000732422
2016	25.926420211792
2017	27.0674095153809
2018	27.7084999084473
2019	31.5401992797852
2020	36.1521987915039
2021	38.866081237793
2022	41.7732887268066