Year	% gross
1970	20.6936206817627
1971	20.8061294555664
1972	20.3386192321777
1973	21.4664497375488
1974	21.5173206329346
1975	22.7491092681885
1976	19.6871700286865
1977	18.6962394714355
1978	27.0530490875244
1979	28.379789352417
1980	27.1499805450439
1981	25.9713001251221
1982	24.9090194702148
1990	53.8794784545898
1993	84.4960098266602
1995	76.5449295043945
1996	80.348762512207
1997	95.587516784668
1998	91.3019180297852
1999	93.8484878540039
2000	90.0384368896484
2001	92.3010711669922
2002	94.8810119628906
2003	103.753341674805
2004	100.811981201172
2005	100.557647705078
2006	98.4752883911133
2007	95.2385864257813
2008	94.2217407226563
2009	97.7212600708008
2010	105.193428039551
2011	106.21996307373
2012	105.119621276855
2013	104.248069763184
2014	101.889198303223
2015	104.256942749023
2016	103.798011779785
2017	100.79647064209
2018	97.5229721069336
2019	97.974250793457
2020	104.307571411133
2021	104.307571411133