Year	% gross
1972	24.367919921875
1973	24.5373001098633
1977	25.6942596435547
1981	25.3221607208252
1982	27.7742900848389
1983	29.4844303131104
1984	28.7400093078613
1985	30.5622806549072
1986	33.6811294555664
1987	34.563549041748
1990	36.8035011291504
1991	38.8683586120605
1992	41.8331604003906
1993	43.7923316955566
1997	58.5732192993164
1999	58.3059997558594
2000	61.0528717041016
2001	64.0924911499023
2002	64.6407470703125
2003	68.6202011108398
2004	77.6631469726562
2005	74.332893371582
2006	78.8372421264648
2007	84.8774185180664
2008	92.3158111572266
2009	94.6006393432617
2010	96.6245193481445
2011	96.9471206665039
2012	93.4684066772461
2013	91.1848602294922
2014	90.6632919311523
2015	90.9003829956055
2016	88.6802978515625
2017	87.7908630371094
2018	87.7741622924805
2019	88.8583221435547
2020	88.9789581298828
2021	85.859001159668
2022	84.6373062133789