Year	% gross
1970	18.1193103790283
1971	18.2901401519775
1972	19.3803195953369
1973	20.5916996002197
1974	21.4386405944824
1975	23.0411605834961
1976	24.6599292755127
1977	25.3872203826904
1978	26.3978595733643
1979	26.7130908966064
1980	27.483850479126
1981	28.4409599304199
1982	29.1877307891846
1983	29.7282390594482
1984	30.3959999084473
1985	31.0494194030762
1986	31.6176700592041
1987	32.6110191345215
1988	33.8852882385254
1989	35.2002487182617
1990	36.8315086364746
1991	38.2159805297852
1992	40.4754219055176
1993	42.9718017578125
1994	45.3580207824707
1995	47.2083892822266
1996	48.8185615539551
1997	50.0489196777344
1998	49.7745399475098
1999	51.5491104125977
2000	53.1821594238281
2001	55.2854690551758
2002	57.5553588867188
2003	59.8147888183594
2004	61.6895408630371
2005	63.7567291259766
2006	65.2157821655273
2007	66.3806762695312
2008	67.2892913818359
2009	68.8426208496094
2010	70.9158935546875
2011	72.5744171142578
2012	74.1266937255859
2013	75.531608581543
2014	76.5442581176758
2015	77.8180999755859
2016	79.8306121826172
2017	80.986930847168
2018	81.9524917602539
2019	83.4052429199219
2020	84.9068832397461
2021	87.3289184570312
2022	87.5015106201172