Year	% gross
1999	53.9121704101563
2000	51.420108795166
2001	53.7310104370117
2002	55.4841117858887
2003	55.6320495605469
2004	56.5738105773926
2005	56.3275489807129
2006	56.840389251709
2007	49.6199111938477
2008	49.6812210083008
2009	51.3384819030762
2010	52.701530456543
2011	55.6359481811523
2012	57.3126907348633
2013	58.364429473877
2014	59.1646881103516
2015	58.1715087890625
2016	58.8274803161621
2017	61.1312599182129
2018	62.2871284484863
2019	63.81494140625
2020	65.3789901733398
2021	63.7926902770996