Year	% gross
1970	110.040939331055
1971	105.101928710938
1972	102.044227600098
1973	103.040260314941
1974	102.071708679199
1975	106.756736755371
1976	110.962532043457
1977	110.204536437988
1978	107.896392822266
1979	108.020088195801
1980	108.017379760742
1981	109.948310852051
1982	111.301223754883
1983	113.834266662598
1984	116.090881347656
1985	120.863952636719
1986	124.032501220703
1987	125.635643005371
1988	123.598937988281
1989	120.45768737793
1990	115.349922180176
1991	113.284339904785
1992	111.614273071289
1993	110.542808532715
1994	109.990348815918
1995	110.281021118164
1996	109.840797424316
1997	109.746398925781
1998	109.574462890625
1999	110.884490966797
2000	112.130523681641
2001	113.127243041992
2002	111.891868591309
2003	110.692527770996
2004	109.542167663574
2005	108.126747131348
2006	106.480186462402
2007	106.992630004883
2008	107.337043762207
2009	107.240158081055
2010	106.683700561523
2011	106.36302947998
2012	106.316398620605
2013	105.602256774902
2014	102.548080444336
2015	101.714828491211
2016	101.449829101562
2017	101.240089416504
2018	100.863639831543
2019	100.93115234375
2020	101.459541320801
2021	101.73429107666
2022	102.20532989502