Year	% gross
1970	33.4200096130371
1971	34.3313407897949
1972	34.7526817321777
1973	35.2143707275391
1974	35.7608299255371
1975	36.7159118652344
1976	37.6015090942383
1977	38.3804092407227
1978	39.6710205078125
1980	46.066291809082
1981	52.377140045166
1982	21.8145503997803
1984	27.0965194702148
1985	27.3577995300293
1986	29.0641803741455
1988	37.8462295532227
1989	35.4821014404297
1990	34.5772399902344
1991	36.1169204711914
1993	36.4765815734863
1994	47.7860984802246
1995	49.6983299255371
1998	34.2968788146973
1999	27.298849105835
2000	22.1629905700684
2001	22.9085903167725
2002	75.9597473144531
2003	96.5536804199219
2004	106.252662658691
2005	100.229690551758
2006	103.932243347168
2007	101.086456298828
2008	103.413963317871
2009	99.3697204589844
2010	102.903442382812
2011	100.290298461914
2012	106.283401489258
2013	107.695976257324
2014	109.115516662598
2015	106.182418823242
2016	106.150283813477
2017	106.129997253418
2018	107.780532836914
2019	110.007507324219