Year	% gross
1970	5.82622003555298
1971	5.8203501701355
1972	5.87741994857788
1973	5.98171997070312
1974	6.16243982315063
1975	6.40032005310059
1976	6.65333986282349
1977	6.77022981643677
1978	6.96880006790161
1979	7.34516000747681
1980	7.66139984130859
1981	7.95103979110718
1982	7.93112993240356
1983	7.9885401725769
1984	8.05175018310547
1985	8.05683994293213
1986	8.27668952941895
1987	8.45851039886475
1988	8.29930973052979
1989	8.33463001251221
1990	8.36538982391357
1991	8.3754997253418
1992	8.36102962493896
1993	8.4275598526001
1994	8.83271026611328
1995	9.24882030487061
1996	9.9124698638916
1997	10.5845403671265
1998	11.3394804000854
1999	12.1536102294922
2000	12.9316596984863
2001	13.7537803649902
2002	14.8473596572876
2003	15.9643802642822
2004	16.9014492034912
2005	17.6973896026611
2006	18.8169898986816
2007	19.8060493469238
2008	20.9267597198486
2009	21.8644599914551
2010	23.1987895965576
2011	24.9368495941162
2012	26.2164096832275
2013	27.0652904510498
2014	29.7944602966309
2015	30.998140335083
2016	31.5748195648193
2017	31.993839263916
2018	32.4290618896484
2019	33.3296318054199
2020	34.4535484313965
2021	35.8314018249512
2022	36.7452697753906