Year	% gross
1971	82.2781982421875
1972	83.3053512573242
1973	89.6755218505859
1974	89.3891220092773
1975	89.6936569213867
1976	88.7801666259766
1977	89.4089202880859
1978	89.7181167602539
1979	91.917350769043
1980	92.9971084594727
1981	93.1104507446289
1982	93.5888519287109
1983	95.6156463623047
1984	96.0238265991211
1985	97.1995620727539
1986	97.4601898193359
1987	96.15380859375
1988	95.5351715087891
1989	97.2181930541992
1990	102.698791503906
1991	105.492279052734
1992	108.118728637695
1993	115.208099365234
1994	126.30248260498
1995	116.391632080078
1996	114.937599182129
1997	116.280769348145
1998	116.977272033691
1999	119.397888183594
2000	116.452041625977
2001	114.568199157715
2002	113.255867004395
2003	113.38200378418
2004	114.047332763672
2005	111.56275177002
2006	111.527641296387
2007	111.639923095703
2008	111.518058776855
2009	111.068412780762
2010	112.978569030762
2011	113.169883728027
2012	112.176536560059
2013	114.515380859375
2014	113.479888916016
2015	115.202041625977
2016	116.6455078125
2017	117.301460266113
2018	117.714706420898
2019	119.421340942383
2020	119.941543579102
2021	119.816871643066