Year	% gross
1970	5.99756002426147
1971	5.97049999237061
1972	6.02031993865967
1973	6.11957979202271
1974	6.32583999633789
1975	6.59606981277466
1976	6.89385986328125
1977	7.07021999359131
1978	7.2813401222229
1979	7.66880989074707
1980	8.00574970245361
1981	8.21164035797119
1982	8.18834018707275
1983	8.16094970703125
1984	8.15205955505371
1985	8.11855030059814
1986	8.30675029754639
1987	8.46436977386475
1988	8.4286003112793
1989	8.54117965698242
1990	8.62563991546631
1991	8.73692035675049
1992	8.84949016571045
1993	9.04716014862061
1994	9.61993980407715
1995	10.2331199645996
1996	11.1512403488159
1997	12.1641302108765
1998	13.2585096359253
1999	14.5197801589966
2000	15.5937795639038
2001	16.6817092895508
2002	18.3835601806641
2003	19.8325500488281
2004	21.1044406890869
2005	22.2839202880859
2006	24.0203990936279
2007	25.3963203430176
2008	27.0204391479492
2009	28.1872100830078
2010	30.0156097412109
2011	32.4796981811523
2012	34.6994018554688
2013	36.4642181396484
2014	40.8647499084473
2015	42.8492889404297
2016	44.2217903137207
2017	45.1743583679199
2018	46.2366485595703
2019	47.7909507751465
2020	49.7038993835449
2021	52.0531806945801
2022	53.3191108703613