Year	% gross
1973	54.6726608276367
1974	50.4283599853516
1975	62.6375694274902
1976	67.0251922607422
1977	67.1355972290039
1979	69.3890686035156
1980	74.106201171875
1981	71.3678207397461
1983	66.7346496582031
1984	64.4745178222656
1985	65.7619094848633
1986	65.4595336914062
1987	64.1185684204102
1988	68.1977081298828
1989	68.4135818481445
1991	72.0421371459961
1993	66.7784805297852
1999	80.7325592041016
2000	79.7774887084961
2001	79.0922927856445
2002	79.0794525146484
2003	79.7689971923828
2004	85.2253189086914
2005	85.8299179077148
2007	89.588996887207
2008	90.8329162597656
2009	91.7373123168945
2010	93.0407485961914
2011	94.8352203369141
2013	89.4418563842773
2014	90.6378402709961
2015	90.0304489135742
2016	92.8814086914062
2017	89.5792922973633
2018	87.6842269897461
2019	88.4543533325195
2020	85.4311370849609
2021	88.124397277832
2022	83.9012832641602