Year	% gross
1971	69.0779724121094
1974	96.1520614624023
1975	84.6809921264648
1976	90.5905609130859
1977	95.1056213378906
1978	87.1361770629883
1979	88.5751876831055
1984	115.24683380127
1992	102.744041442871
2007	114.418601989746
2008	115.042236328125
2009	114.809349060059
2010	114.559143066406
2011	112.59790802002
2012	110.453651428223
2013	110.597999572754
2014	109.141578674316
2015	108.112289428711
2016	105.500999450684
2017	108.550430297852
2018	111.907440185547
2019	110.984001159668