Year	% gross
1971	23.6049194335938
1972	23.9752101898193
1973	24.3854808807373
1975	25.1192302703857
1976	25.3391799926758
1977	25.9298706054688
1978	26.3240795135498
1980	28.5113906860352
1981	29.9509792327881
1982	31.4259300231934
1983	33.3632316589355
1984	34.688648223877
1986	36.7133598327637
1987	36.3184089660645
1988	36.3846092224121
1989	36.6050415039062
1993	45.0090103149414
1994	45.4297981262207
1995	45.2833518981934
1996	45.2715797424316
1997	45.7969207763672
1999	42.9011917114258
2000	44.705810546875
2001	48.0781288146973
2002	49.2973213195801
2003	51.9028091430664
2004	53.6583099365234
2005	56.3279800415039
2006	57.2240791320801
2007	59.5899810791016
2008	62.6794281005859
2009	61.8002281188965
2010	65.3513488769531
2011	68.5910110473633
2012	70.3243865966797
2013	69.9568023681641
2014	75.3183288574219
2015	74.9483337402344
2016	76.119987487793
2017	74.5972671508789
2018	75.7847900390625
2019	75.5255813598633
2020	75.109001159668
2021	78.0630035400391
2022	78.8130035400391
2023	76.5410003662109