Year	% gross
1971	43.4568901062012
1972	47.0558013916016
1973	48.2718086242676
1974	51.6837692260742
1975	53.4712181091309
1976	53.9155311584473
1977	55.297679901123
1978	59.8287582397461
1979	61.4019889831543
1980	53.8657188415527
1981	58.3140411376953
1982	62.470329284668
1983	71.3246536254883
1984	71.2503433227539
1985	75.2616882324219
1986	80.4881210327148
1987	82.2119522094727
1988	83.4977493286133
1989	85.6858520507812
1990	84.0944519042969
1991	97.8152465820312
1992	94.3651733398438
1993	93.2764587402344
1994	91.9786605834961
1995	88.9943084716797
1996	87.1749725341797
1997	84.9380798339844
1998	84.9871215820312
1999	84.7230529785156
2000	87.6513137817383
2001	90.381706237793
2002	93.2364883422852
2003	95.4257202148438
2004	93.139778137207
2005	90.2647476196289
2006	89.4372024536133
2008	91.8119277954102
2009	92.3821029663086
2010	92.0852813720703
2011	93.8450775146484
2012	96.6031494140625
2013	105.400871276855
2014	104.973571777344
2015	102.175338745117
2016	103.418769836426
2017	102.819198608398
2018	100.528327941895
2019	101.170440673828
2022	101.433769226074