Year	% gross
1971	81.3774490356445
1972	83.1278305053711
1973	87.7919998168945
1974	89.7886428833008
1989	104.077301025391
1990	105.748718261719
1991	92.8210220336914
1992	84.2770614624023
1993	80.1629867553711
1994	78.0515365600586
1995	78.0427398681641
1996	79.3822479248047
1997	81.3332214355469
1998	81.0956726074219
1999	82.1632308959961
2000	81.8197402954102
2001	83.019416809082
2002	84.0929183959961
2003	83.4010467529297
2004	81.9596099853516
2005	80.5182723999023
2006	85.4100570678711
2007	84.5268402099609
2008	94.9539184570312
2009	103.679046630859
2010	103.067321777344
2011	101.547317504883
2012	98.2473220825195
2013	96.613410949707
2014	94.055290222168
2015	96.4276809692383
2016	89.0226135253906
2017	88.2787475585938
2018	86.5485076904297
2019	86.2219772338867
2020	91.174919128418
2021	85.9921875