Year	% gross
1971	96.7211685180664
1972	96.2802505493164
1973	96.1799087524414
1974	94.8491516113281
1975	93.3756484985352
1976	93.2779083251953
1977	92.8092575073242
1978	93.4822692871094
1979	93.6628036499023
1980	94.0734405517578
1981	94.7268829345703
1982	95.5107269287109
1983	96.4219436645508
1984	97.4820327758789
1985	92.4145431518555
1986	92.4366683959961
1987	80.1338806152344
1988	81.3965225219727
1990	59.9183006286621
1991	76.8263168334961
1992	75.0593719482422
1993	76.3156890869141
1994	74.5373764038086
1995	78.4960021972656
1998	63.532600402832
1999	51.2905693054199
2002	62.7851791381836
2007	86.5012130737305
2008	95.339958190918
2009	95.4763031005859
2010	95.6278686523438
2011	97.0199890136719
2012	101.648918151855
2013	103.082382202148
2014	106.844009399414
2015	104.778686523438
2018	113.982978820801
2020	118.195663452148
2021	122.393676757812