Year	% gross
1971	78.1303863525391
1972	80.069221496582
1973	75.1846313476563
1974	81.1184921264648
1975	82.8181076049805
1976	72.4989700317383
1977	89.3290710449219
1978	97.7221908569336
1979	97.486686706543
1980	93.8454437255859
1981	91.7686996459961
1985	105.258247375488
1986	105.390029907227
1987	96.8949203491211
1988	93.8608474731445
1989	95.0293579101563
1990	82.1260070800781
1991	82.4049301147461
1992	85.276252746582
1993	88.9733810424805
1994	99.520866394043
1999	68.2480697631836
2001	73.949821472168
2002	79.7141799926758
2005	80.2664489746094
2006	76.6209182739258
2007	77.2352294921875
2008	82.8683929443359
2009	83.9899368286133
2010	74.4047927856445
2011	75.5208129882813
2012	83.4344711303711
2013	88.4875183105469
2014	87.7850875854492
2015	87.2585830688477
2016	89.6760025024414
2017	90.381217956543
2018	86.1577911376953
2019	94.1855010986328
2020	88.3974533081055
2021	78.1529693603516