Year	% gross
1970	28.3723201751709
1971	29.26123046875
1972	32.1902389526367
1973	34.444221496582
1974	39.4959297180176
1975	40.5927391052246
1976	43.4699096679688
1977	46.5722007751465
1978	47.8210487365723
1979	48.7683181762695
1980	49.7502784729004
1981	50.0668716430664
1982	50.8770790100098
1983	51.7344703674316
1984	52.6500015258789
1985	53.1502914428711
1986	54.3002395629883
1987	55.0484199523926
1988	55.6950988769531
1989	56.0796089172363
1990	56.1708717346191
1991	56.8350486755371
1992	57.8805694580078
1993	58.1015586853027
1994	59.1540489196777
1995	60.5241584777832
1996	62.6394805908203
1997	63.6701316833496
1998	65.9358673095703
1999	67.996223449707
2000	69.7081909179688
2001	71.3486404418945
2002	83.2285308837891
2003	80.6343612670898
2004	82.602653503418
2005	82.9109497070312
2006	77.8211975097656
2007	82.6372909545898
2008	83.8222885131836
2009	84.9592590332031
2010	86.088249206543
2011	86.6496734619141
2012	86.4348678588867
2013	91.5417404174805
2014	91.6652374267578
2015	92.0605926513672
2016	93.3043899536133
2017	94.0040512084961
2018	95.0307388305664
2019	94.7313232421875
2020	94.0288009643555
2021	93.6521530151367
2022	94.1549987792969