Year	% gross
1971	58.5135688781738
1972	59.3076286315918
1973	62.632209777832
1974	59.689811706543
1975	63.9328918457031
1976	73.47705078125
1977	95.1463775634766
1978	92.4590225219727
1979	102.348350524902
1989	115.327911376953
1990	105.839057922363
1991	99.2676696777344
1992	96.3565979003906
1993	95.6485900878906
1999	100.168746948242
2000	103.858833312988
2001	103.473831176758
2002	106.838760375977
2003	105.168479919434
2004	105.103332519531
2005	102.854553222656
2006	100.32633972168
2007	101.569869995117
2008	102.432548522949
2009	101.260093688965
2010	101.166412353516
2011	102.676452636719
2012	99.3245620727539
2013	99.6905822753906
2014	100.713661193848
2015	99.8024673461914
2016	101.28736114502
2017	105.325927734375
2018	101.238258361816
2019	96.2425994873047
2020	92.7896194458008
2021	89.0703506469727
2022	84.9676666259766