Year	% gross
1970	4.28468990325928
1971	5.06861019134521
1972	6.02682018280029
1973	6.89603996276855
1974	8.04160022735596
1975	9.25685024261475
1976	9.48729991912842
1977	9.65974044799805
1978	10.0266704559326
1979	10.5566997528076
1980	11.1070404052734
1981	11.6744899749756
1982	12.0302696228027
1983	12.5257797241211
1984	13.0404195785522
1985	13.7033996582031
1986	14.3389701843262
1987	14.917010307312
1988	15.3290395736694
1989	15.6669998168945
1990	15.8505401611328
1991	16.2669792175293
1992	16.389820098877
1993	16.6034908294678
1994	17.0340595245361
1995	17.761100769043
1996	18.6782207489014
1997	19.9790306091309
1998	21.6277294158936
1999	23.2362003326416
2000	24.6103706359863
2001	26.0372104644775
2002	28.0531101226807
2003	29.756519317627
2004	30.9659900665283
2005	32.7689208984375
2006	36.2674293518066
2007	37.7066307067871
2008	40.9533386230469
2009	42.6002388000488
2010	44.7972297668457
2011	47.0161399841309
2012	49.2855186462402
2013	50.7485389709473
2014	52.8165702819824
2015	54.2865295410156
2016	56.7067794799805
2017	58.2428703308105
2018	59.218578338623
2019	60.4224281311035
2020	62.7831916809082
2021	65.6805114746094
2022	65.5034790039062