Year	% gross
1971	120.096626281738
1972	120.330978393555
1973	116.383918762207
1974	114.506210327148
1975	109.162261962891
1976	108.613662719727
1977	110.280143737793
1978	110.022453308105
1979	110.067993164062
1980	107.159843444824
1981	105.041938781738
1982	102.368980407715
1983	100.226356506348
1984	100.842651367188
1985	103.671279907227
1986	105.720703125
1987	106.841979980469
1988	106.871658325195
1989	107.461380004883
1990	108.726692199707
1991	109.349807739258
1992	106.017143249512
1993	105.405731201172
1994	105.324920654297
1995	103.95337677002
1996	104.333290100098
1997	104.721870422363
1998	104.251541137695
1999	104.604972839355
2000	106.36759185791
2001	105.503288269043
2002	105.043991088867
2003	104.113998413086
2004	105.063079833984
2005	102.89608001709
2006	102.830116271973
2007	103.004371643066
2008	103.135833740234
2009	98.1346664428711
2010	102.578308105469
2011	100.981498718262
2012	100.937980651855
2013	101.232513427734
2014	100.673332214355
2015	100.305511474609
2016	99.9404602050781
2017	99.609992980957
2018	99.5983276367188
2019	98.1748886108398
2020	96.802490234375
2021	95.4136581420898
2022	93.5346603393555