Year	% gross
1971	2.1968400478363
1972	1.924880027771
1973	1.89619994163513
1974	1.88038003444672
1975	1.84702003002167
1976	1.96484994888306
1977	1.95977997779846
1978	2.08587002754211
1979	2.06703996658325
1980	2.01178002357483
1986	2.82945990562439
1987	2.80859994888306
1988	3.18139004707336
1990	2.92652988433838
1992	2.00996994972229
2003	2.38838005065918
2004	3.0025999546051
2005	4.37540006637573
2006	4.45320987701416
2007	5.02788019180298
2008	4.97444009780884
2009	6.09046983718872
2011	7.46099996566772
2012	8.49699974060059
2013	8.89700031280518
2014	8.92599964141846
2015	8.61200046539307
2016	8.47799968719482
2017	8.80099964141846
2018	8.39200019836426
2019	11.3470001220703
2020	11.944239616394
2021	12.5979995727539
2022	12.6965999603271
2023	13.4290599822998