Year	% gross
1970	0.919269979000092
1971	0.927200019359589
1973	0.867259979248047
1974	0.855329990386963
1975	0.846099972724915
1977	0.86897999048233
1978	0.865069985389709
1979	2.15563988685608
1981	2.49470996856689
1983	3.27922010421753
1984	3.32138991355896
1985	3.04146003723145
1986	3.13433003425598
1994	3.1667799949646
2010	20.5410003662109
2011	18.4650001525879
2012	19.9769992828369
2013	21.7280006408691
2014	20.4710006713867
2015	22.7310009002686
2016	21.818000793457
2017	21.8330001831055
2018	22.5790004730225
2019	25.2490005493164
2020	26.0879993438721
2021	26.4950008392334
2022	28.7469997406006