Year	% gross
1981	51.1839294433594
1982	51.3566513061523
1983	55.2304496765137
1986	62.1956214904785
1987	61.0014686584473
1988	58.8904304504395
1989	59.977180480957
1990	59.9421195983887
1991	64.0547332763672
1995	67.9955673217773
1996	70.5953063964844
2005	69.3330383300781
2013	71.4453887939453
2014	65.3992919921875
2015	71.3406677246094
2016	71.7789611816406
2017	73.1509704589844
2018	72.7014923095703
2019	71.344856262207
2020	72.5665130615234