Year	% gross
1970	5.31516981124878
1971	5.32145977020264
1972	5.71007013320923
1973	6.21389007568359
1974	6.65768003463745
1975	7.28212022781372
1976	8.04063987731934
1977	8.79804039001465
1978	9.27593994140625
1979	9.42877006530762
1980	9.9377498626709
1981	10.5787000656128
1982	10.9861698150635
1983	11.2210597991943
1984	11.5880899429321
1985	11.5994901657104
1986	12.0177297592163
1987	12.2357797622681
1988	12.446629524231
1989	12.2480697631836
1990	12.3587198257446
1991	12.1536798477173
1992	12.8700399398804
1993	13.7452001571655
1994	14.3931999206543
1995	15.2168703079224
1996	16.5021896362305
1997	17.3941898345947
1998	18.1477108001709
1999	19.2249393463135
2000	19.3948802947998
2001	19.9243907928467
2002	20.287239074707
2003	20.4081497192383
2004	21.7082099914551
2005	22.791919708252
2006	23.7737197875977
2007	25.4366207122803
2008	27.6508197784424
2009	28.3359107971191
2010	30.0042304992676
2011	30.1966304779053
2012	32.0116195678711
2013	33.30126953125
2014	35.6958694458008
2015	38.0312614440918
2016	37.4230995178223
2017	37.7876396179199
2018	38.2126007080078
2019	38.385929107666
2020	38.5039405822754
2021	38.5551795959473
2022	38.6498489379883