Year	% gross
1971	93.110481262207
1972	84.7937088012695
1973	97.708740234375
1974	94.3315124511719
1975	99.4431228637695
1976	102.483711242676
1977	117.209686279297
1978	117.174751281738
1979	116.341903686523
1980	121.920959472656
2001	90.7464981079102
2002	90.9442672729492
2003	94.2537612915039
2004	98.2273635864258
2005	97.0428009033203
2006	92.3351898193359
2010	98.8274688720703
2011	98.5445175170898
2012	97.2222213745117
2013	96.0971374511719
2014	94.2932434082031
2015	94.1255569458008
2016	93.6780014038086
2017	88.1460037231445
2018	89.879997253418
2019	85.9810028076172
2020	85.9960021972656
2021	84.9160003662109
2022	79.9049987792969