Year	% gross
1971	76.5642776489258
1972	77.1300277709961
1973	77.0166702270508
1974	73.4659576416016
1975	79.3317031860352
1976	78.2914810180664
1977	78.8804779052734
1978	84.946662902832
1979	86.3493728637695
1980	90.9412612915039
1981	91.7770690917969
1982	91.9946975708008
1983	94.4343795776367
1984	96.8074264526367
1985	101.428016662598
1989	92.383171081543
1990	88.8543395996094
1999	108.72119140625
2000	106.496398925781
2001	106.895492553711
2002	106.538719177246
2003	105.990989685059
2004	106.922340393066
2005	107.731002807617
2006	106.926780700684
2007	108.901550292969
2008	110.275459289551
2009	109.856666564941
2010	107.445167541504
2011	107.060928344727
2014	108.174942016602
2015	108.281532287598
2016	108.478012084961
2017	110.007057189941
2018	108.462646484375
2019	106.328201293945
2020	104.71501159668
2021	104.710250854492
2022	106.39241027832