Year	% gross
1971	1.8707400560379
1972	1.8545800447464
1973	1.83649003505707
1974	2.00549006462097
1975	2.40401005744934
1976	2.85540008544922
1977	3.57733011245728
1978	4.02384996414185
1979	4.06122016906738
1980	3.37086009979248
1982	3.05720996856689
1983	3.75798010826111
1984	4.78861999511719
1985	5.39130020141602
1986	5.88845014572144
1987	6.46823978424072
1988	6.73803997039795
1989	7.43735980987549
1990	8.35888004302979
1991	9.29883003234863
1992	9.98287963867188
1993	11.3492498397827
1994	14.8295602798462
1995	15.3785104751587
1997	16.7042102813721
1998	18.2116107940674
1999	18.8526306152344
2001	20.7620391845703
2002	21.8128299713135
2003	25.5461406707764
2004	25.9345798492432
2005	28.3609199523926
2006	32.256721496582
2007	34.2711715698242
2008	35.912841796875
2009	41.8152809143066
2010	51.5875282287598
2011	56.9135704040527
2012	65.1214981079102
2013	74.1832504272461
2014	81.5194778442383
2015	89.8533096313477
2016	97.5038528442383
2017	104.26927947998
2018	109.953590393066
2019	114.014442443848
2020	117.806449890137
2021	126.784469604492