Year	% gross
1971	0
1976	1.80867004394531
1977	1.8340699672699
1980	2.79867005348206
1981	3.2974100112915
1982	4.90309000015259
1983	6.91243982315063
1984	7.24871015548706
1985	8.68931007385254
1986	9.81385040283203
1987	8.56262016296387
1988	7.81611013412476
1989	8.03194999694824
1990	7.76069021224976
1991	7.71871995925903
1992	6.88175010681152
1993	7.74734020233154
1994	8.15987014770508
1995	8.79794979095459
1996	9.60560035705566
1997	10.2311000823975
1998	9.487380027771
1999	8.7599401473999
2001	8.44478988647461
2002	7.96611022949219
2003	7.04970979690552
2004	7.74392986297607
2005	6.98043012619019
2006	5.80687999725342
2007	5.42910003662109
2008	5.22662019729614
2009	4.49385976791382
2010	4.40631008148193
2011	5.9202299118042
2012	5.52810001373291
2013	6.90628004074097
2014	7.87261009216309
2015	6.86968994140625
2016	6.03146982192993
2017	6.42305994033813
2018	6.49270009994507
2019	7.90192985534668
2020	8.87827014923096
2021	14.1411695480347
2022	16.471809387207