Year	% gross
1971	81.2430114746094
1972	81.5705108642578
1973	83.8759231567383
1974	84.0732574462891
1975	85.8006820678711
1976	73.1220703125
1977	88.9344329833984
1978	98.7975769042969
1979	98.4173126220703
1981	91.5252380371094
1985	106.933837890625
1986	105.962837219238
1987	99.3134231567383
1988	97.0591583251953
1989	97.1794891357422
1990	83.9289398193359
1991	83.5030822753906
1992	87.2072296142578
1993	89.3866271972656
1994	101.618438720703
2001	73.7624206542969
2002	79.3136825561523
2005	81.4774703979492
2006	74.2465972900391
2007	79.5106964111328
2008	85.2973098754883
2009	86.2996215820313
2010	75.3423309326172
2011	76.5875396728516
2012	86.3203811645508
2013	91.1042633056641
2014	89.47998046875
2015	89.8624420166016
2016	91.5382308959961
2017	90.855110168457
2018	86.3712463378906
2019	96.6653594970703
2020	91.7433929443359
2021	80.1277618408203