Year	% gross
2006	19.3359909057617
2007	19.1756591796875
2008	19.2274303436279
2009	19.1840991973877
2010	19.3622493743896
2011	19.490629196167
2012	19.9729194641113
2013	20.3295402526855
2014	21.6763706207275
2015	23.6426391601562
2016	23.8923091888428
2017	25.2702102661133
2018	25.9097309112549
2019	29.3166809082031
2020	33.9454498291016
2021	36.0815811157227
2022	38.6670112609863