Year	% gross
1970	78.1009368896484
1971	78.019889831543
1972	79.2068481445312
1973	80.1689376831055
1974	81.4094009399414
1975	81.9624176025391
1976	82.6420822143555
1977	83.5708465576172
1978	84.1377868652344
1979	83.7555465698242
1980	87.2971878051758
1981	87.5964965820312
1982	88.6925430297852
1983	89.2526016235352
1984	90.0183410644531
1985	89.9779891967773
1986	91.2965774536133
1987	92.0122604370117
1988	92.2935409545898
1989	92.6816787719727
1990	93.0176010131836
1991	93.7273025512695
1992	94.4411697387695
1993	96.5056991577148
1994	98.5680313110352
1995	98.7509078979492
1996	99.2666015625
1997	99.3645095825195
1998	98.4688262939453
1999	99.0239105224609
2000	99.4410629272461
2001	100.054290771484
2002	100.570770263672
2003	100.737663269043
2004	100.007667541504
2005	100.756340026855
2006	100.549407958984
2007	100.482460021973
2008	100.955718994141
2009	101.428398132324
2010	102.171562194824
2011	101.937606811523
2012	101.836547851562
2013	104.842979431152
2014	104.997489929199
2015	105.320739746094
2016	105.150993347168
2017	105.444053649902
2018	105.051612854004
2019	105.238166809082
2020	105.036460876465
2021	105.069396972656
2022	105.124412536621