Year	% gross
1975	15.4453201293945
1976	27.9352207183838
1977	21.4285697937012
1978	29.4294300079346
1979	24.8932304382324
1984	20.8835296630859
2007	82.7368392944336
2008	85.0777893066406
2010	94.4933929443359
2011	88.6988830566406
2012	97.0909118652344
2013	94.6733016967773
2014	92.9469299316406
2016	71.9632797241211
2017	68.8750915527344
2018	66.5991897583008
