Year	% gross
1971	96.9091720581055
1972	104.684669494629
1973	111.938888549805
1974	116.469291687012
1975	119.235969543457
1976	122.785591125488
1977	127.53426361084
1978	129.035064697266
1979	131.255737304688
1980	127.989631652832
1981	122.082473754883
1982	126.403861999512
1983	126.552299499512
1984	125.678161621094
1985	127.246810913086
1986	124.43879699707
1987	122.783767700195
1988	122.362289428711
1989	123.489929199219
1990	123.829803466797
1991	123.446907043457
1992	122.220970153809
1993	122.718696594238
1994	121.168876647949
1995	116.692817687988
1996	120.738502502441
1997	124.121551513672
1998	126.040748596191
1999	104.047019958496
2000	104.808959960938
2001	106.905807495117
2002	105.880859375
2003	105.309852600098
2004	103.170341491699
2005	103.064880371094
2006	107.420150756836
2007	101.432060241699
2008	99.8569183349609
2009	99.6741180419922
2010	99.1148223876953
2011	98.4985885620117
2012	97.4788131713867
2013	97.9308090209961
2014	97.4298324584961
2015	95.7481918334961
2016	96.4007263183594
2017	96.7399826049805
2018	97.9211578369141
2019	98.7415771484375
2020	99.3261871337891
2021	101.180999755859
2022	103.664779663086