Year	% gross
1970	2.38376998901367
1971	1.54049003124237
1972	1.4059100151062
1973	1.41875004768372
1974	1.34826004505157
1975	1.09949994087219
1976	1.39257001876831
1977	1.49370002746582
1978	1.33837997913361
1979	1.14681994915009
1980	0.964940011501312
1981	0.819339990615845
1982	0.82014000415802
1983	0.606410026550293
1984	0.674969971179962
1985	0.986280024051666
1986	0.952839970588684
1987	1.40468001365662
1988	1.93394994735718
1989	2.05776000022888
1990	3.40525007247925
1991	4.03660011291504
1993	5.98006010055542
1994	5.43189001083374
1995	5.90947008132935
1996	6.62744998931885
1997	6.43579006195068
1999	9.42360973358154
2000	10.6246900558472
2001	16.8465309143066
2002	15.6685104370117
2003	16.6261405944824
2004	18.0901107788086
2005	21.7921104431152
2006	23.7231502532959
2007	24.2724895477295
2008	26.2934398651123
2009	30.2279090881348
2010	31.8634605407715
2011	36.0936889648438
2012	39.9540405273438
2013	41.1901512145996
2014	40.3392105102539
2015	38.1018981933594
2016	38.9758415222168
2017	40.0490684509277
2018	40.5310707092285
2019	42.6640701293945
2020	42.7841491699219
2021	43.9590797424316
2022	44.3886985778809