Year	% gross
1971	23.7221508026123
1972	21.7968006134033
1973	19.8295497894287
1974	24.2771396636963
1975	35.6116981506348
1976	46.3388786315918
1983	60.77294921875
2002	76.6895217895508
2003	76.0657272338867
2004	76.2195129394531
2005	86.0861587524414
2006	86.146598815918
2007	84.9232788085938
2008	85.1802673339844
2009	86.7272262573242
2010	89.9800491333008
2011	93.692268371582
2012	92.2807006835938
2013	90.9656677246094
2014	91.8740692138672
2015	92.5457992553711
2016	94.2090682983398
2017	94.3697509765625
2018	95.0905990600586
2019	95.6840591430664
2020	96.4627532958984
2021	97.3252334594727
2022	97.4890365600586