Year	% gross
1971	77.3910675048828
1972	78.5284729003906
1973	83.1891632080078
1974	85.2518081665039
1989	101.445838928223
1990	103.094291687012
1991	91.6804733276367
1992	83.6528472900391
1993	79.1946182250977
1994	78.022102355957
1995	78.0914306640625
1996	79.1121520996094
1997	80.4126510620117
1998	80.7422485351562
1999	81.9171905517578
2000	82.38330078125
2001	83.499382019043
2002	84.9503479003906
2003	84.2207717895508
2004	82.5846405029297
2005	81.0594787597656
2006	85.6820602416992
2007	84.2603607177734
2008	94.5384063720703
2009	103.393241882324
2010	102.467903137207
2011	100.735900878906
2012	97.4503707885742
2013	95.6988983154297
2014	93.5342178344727
2015	91.2671966552734
2016	88.7795104980469
2017	88.3843231201172
2018	86.5577163696289
2019	86.3203887939453
2020	86.2643814086914
2021	86.1970901489258