Year	% gross
1970	113.855079650879
1971	101.950073242188
1972	100.460891723633
1973	99.0150680541992
1974	98.281867980957
1975	110.195671081543
1976	110.328033447266
1977	109.31201171875
1978	111.911506652832
1979	113.178558349609
1980	110.805458068848
1981	103.498840332031
1982	102.015762329102
1983	101.954299926758
1984	107.081382751465
1985	108.67121887207
1986	108.493713378906
1987	107.058219909668
1990	102.793502807617
1991	103.444442749023
1992	102.865257263184
1993	104.084800720215
1994	103.543258666992
1995	105.673309326172
1996	108.698738098145
1997	108.448959350586
1998	107.434242248535
1999	108.832107543945
2000	106.867637634277
2001	107.490852355957
2002	107.147331237793
2003	111.651268005371
2004	106.822723388672
2005	106.244148254395
2006	105.564559936523
2007	105.351127624512
2008	103.611839294434
2009	102.88614654541
2010	103.121559143066
2011	104.496932983398
2012	107.215339660645
2013	109.412063598633
2014	109.332221984863
2015	110.143989562988
2018	114.34065246582
2019	113.980003356934
2020	114.392997741699
2021	109.533996582031
2022	109.861000061035