Year	% gross
1974	7.20066976547241
1975	7.39257001876831
1977	7.51159000396729
1978	7.98277997970581
1979	8.30675029754639
1980	8.9523401260376
1981	8.61081027984619
1982	8.6666202545166
1983	9.25265026092529
1984	8.93544006347656
1985	6.93693017959595
1986	8.85159015655518
1987	10.2008304595947
1990	12.5499496459961
1991	13.2956800460815
1992	14.1578397750854
1994	11.1700000762939
1995	12.4084901809692
1996	14.6685400009155
1997	14.4301900863647
1998	14.1446504592896
1999	15.4132795333862
2000	10.9451704025269
2001	12.353569984436
2004	16.7050704956055
2006	16.9576606750488
2009	17.8492698669434
2016	13.3452529907227
2017	29.1217479705811
2018	35.5248794555664
2019	35.4946517944336
2020	33.944149017334
2021	31.3401336669922