Year	% gross
1973	1.08168995380402
1974	1.15883004665375
1975	1.24895000457764
1976	1.37326002120972
1977	1.50292003154755
1978	1.68262994289398
1979	2.07703995704651
1980	2.44915008544922
1981	2.75177001953125
1982	3.07530999183655
1983	3.12063002586365
1984	3.22588992118835
1985	3.25875997543335
1986	3.44035005569458
1987	3.69099998474121
1988	3.70986008644104
1989	3.8950400352478
1990	3.95474004745483
1991	4.11628007888794
1992	4.25560998916626
1993	4.53758001327515
1994	5.2545599937439
1995	6.03600978851318
1996	6.7281699180603
1997	7.77374982833862
1998	8.68253993988037
1999	9.72702980041504
2000	10.5118999481201
2001	11.4338998794556
2002	13.4450702667236
2003	15.3827600479126
2004	17.3861904144287
2005	18.8596305847168
2006	20.7215995788574
2007	22.2284603118896
2008	23.1981906890869
2009	24.8149890899658
2010	26.8107109069824
2011	28.5470104217529
2012	31.3126201629639
2013	34.3919982910156
2014	42.8629493713379
2015	46.0335006713867
2016	48.5025405883789
2017	49.4062805175781
2018	50.6103096008301
2019	53.1014213562012
2020	56.4079513549805
2021	59.9977188110352
2022	62.9251518249512