Year	% gross
1970	78.6294631958008
1971	78.6752090454102
1972	79.6156616210938
1973	79.8080902099609
1974	80.1593475341797
1975	79.5196228027344
1976	79.3157424926758
1977	79.2687072753906
1978	78.7724609375
1979	78.5369567871094
1980	81.4479293823242
1981	81.313117980957
1982	82.8538818359375
1983	83.1061935424805
1984	84.0550994873047
1985	84.1989593505859
1986	85.4154281616211
1987	85.9232635498047
1988	86.1907272338867
1989	86.5098266601562
1990	86.40869140625
1991	86.867561340332
1992	88.0218505859375
1993	90.3203735351562
1994	92.5112915039062
1995	92.7594223022461
1996	93.5837936401367
1997	93.6377563476562
1998	93.349967956543
1999	94.2282562255859
2000	94.806396484375
2001	96.165283203125
2002	97.1214828491211
2003	97.7273025512695
2004	96.9346771240234
2005	97.4229583740234
2006	97.7866668701172
2007	98.1745376586914
2008	98.4235229492188
2009	97.9763717651367
2010	99.1976165771484
2011	99.5606689453125
2012	99.2119903564453
2013	103.344909667969
2014	104.235946655273
2015	104.910232543945
2016	105.318870544434
2017	106.418296813965
2018	105.985610961914
2019	106.369659423828
2020	105.843048095703
2021	105.127166748047
2022	105.064392089844