Year	% gross
1971	3.88296008110046
1972	3.8184700012207
1973	4.19438982009888
1974	4.44486999511719
1975	4.93569993972778
1976	5.56237983703613
1977	6.26735019683838
1978	6.77732992172241
1979	7.24687004089355
1980	8.35375022888184
1981	9.69900989532471
1982	10.1123104095459
1983	11.171290397644
1984	12.8716297149658
1985	14.7210102081299
1986	18.860559463501
1987	28.6855792999268
1988	33.7374801635742
1989	40.8239212036133
1990	42.082649230957
1991	44.6589813232422
1992	47.1573791503906
1993	52.393180847168
1994	61.7273292541504
1995	67.7503128051758
1996	61.6436080932617
1997	65.7843170166016
2012	86.129997253418
2014	71.3422317504883
2015	67.9523620605469
2016	71.9915618896484
2017	74.7819519042969
2018	78.8232192993164
2019	78.6048278808594
2020	75.217399597168
2021	74.004280090332
2022	74.369758605957