Year	% gross
1970	0.90583997964859
1971	0.98158997297287
1973	1.5905100107193
1975	1.64584994316101
1977	2.53615999221802
1978	2.53292989730835
1981	3.54137992858887
1983	2.99015998840332
1998	8.20098972320557
1999	10.5981597900391
2000	6.8549599647522
2017	12.5869998931885
2018	13.5640001296997
2019	13.1230001449585
2020	16.386999130249
2021	17.57200050354
2022	17.0321598052979