Year	% gross
1980	51.6339912414551
1999	37.8289489746094
2000	47.860538482666
2001	53.4055709838867
2002	42.6771697998047
2004	44.3521614074707
2005	48.1775016784668
2006	52.8505401611328
2007	70.4747772216797
2012	37.9441604614258
2013	76.75
2014	80.9405899047852
2015	84.3403167724609
2017	90.8060531616211
2018	88.258056640625