Year	% gross
1970	35.2022514343262
1971	32.6187400817871
1972	44.5464706420898
1973	52.8946113586426
1974	49.1356887817383
1975	53.375789642334
1976	54.7556686401367
1977	54.6543502807617
1978	53.0950813293457
1979	51.7734985351562
1980	50.3849983215332
1981	53.6902008056641
1982	55.2718086242676
1983	51.2450790405273
1984	55.199161529541
1985	53.7023887634277
1986	53.5069007873535
1987	52.8172912597656
1988	67.7743835449219
1989	67.6755676269531
1990	71.7412261962891
2005	101.687660217285
2006	102.157989501953
2007	101.135711669922
2008	97.5703277587891
2009	99.531867980957
2010	102.373001098633
2017	111.90299987793
2018	115.900001525879
2020	123.268051147461
2021	116.153999328613
2022	123.08699798584