Year	% gross
1970	5.97344017028809
1971	5.96475982666016
1972	6.01817989349365
1973	6.117919921875
1974	6.29381990432739
1975	6.53535985946655
1976	6.80228996276855
1977	6.91949987411499
1978	7.1244797706604
1979	7.53146982192993
1980	7.87693977355957
1981	8.17434978485107
1982	8.14107990264893
1983	8.19511032104492
1984	8.24965000152588
1985	8.24619007110596
1986	8.47762966156006
1987	8.67568016052246
1988	8.50411033630371
1989	8.54786968231201
1990	8.58699989318848
1991	8.60463047027588
1992	8.60542011260986
1993	8.69388961791992
1994	9.15359020233154
1995	9.62082004547119
1996	10.3550100326538
1997	11.0973596572876
1998	11.9168901443481
1999	12.7989196777344
2000	13.6316699981689
2001	14.5046396255493
2002	15.6829996109009
2003	16.8967094421387
2004	17.900089263916
2005	18.7477893829346
2006	19.9547805786133
2007	21.0365200042725
2008	22.2404594421387
2009	23.2329692840576
2010	24.6913890838623
2011	26.6469097137451
2012	28.0902500152588
2013	29.0863094329834
2014	32.1703109741211
2015	33.6022911071777
2016	34.3493995666504
2017	34.902759552002
2018	35.4701881408691
2019	36.554328918457
2020	37.896800994873
2021	39.5476608276367
2022	40.6835403442383