Year	% gross
1970	77.8424835205078
1971	77.800048828125
1972	78.9266815185547
1973	80.9094696044922
1974	82.8133163452148
1975	83.4109497070312
1976	84.4264221191406
1977	85.387092590332
1978	85.781608581543
1979	86.3132629394531
1980	86.8340606689453
1981	86.6868133544922
1982	87.1381988525391
1983	87.7853698730469
1984	88.3385314941406
1985	89.2617797851562
1986	91.3750305175781
1987	92.4571990966797
1988	93.0733184814453
1989	93.9052963256836
1990	94.533073425293
1991	96.2364196777344
1992	98.0925979614258
1993	101.419151306152
1994	105.056312561035
1995	105.808128356934
1996	106.304092407227
1997	106.018478393555
1998	103.07967376709
1999	103.560249328613
2000	103.346336364746
2001	104.369102478027
2002	105.010223388672
2003	105.225036621094
2004	104.263481140137
2005	105.991752624512
2006	106.487991333008
2007	106.559242248535
2008	107.139358520508
2009	107.298637390137
2010	108.868766784668
2011	109.612701416016
2012	108.471237182617
2013	109.005058288574
2014	108.356201171875
2015	108.174827575684
2016	107.379379272461
2017	107.626281738281
2018	107.873916625977
2019	107.82398223877
2020	107.632881164551
2021	107.721130371094
2022	107.757377624512