Year	% gross
2004	56.7076797485352
2005	55.4044494628906
2008	54.214298248291
2009	65.6402435302734
2010	67.4160003662109
2011	68.9250030517578
2012	68.447998046875
2013	65.7750015258789
2014	66.5960006713867
2015	70.2519989013672
2016	74.1989974975586
2017	77.1230010986328
2018	78.3219985961914
2019	79.8600006103516
2020	79.3639984130859