Year	% gross
1971	73.8240432739258
1972	74.5718612670898
1973	75.1091384887695
1974	79.5210876464844
1975	80.1377182006836
1976	80.7948226928711
1977	81.3379898071289
1978	81.2246398925781
1979	81.2276382446289
1980	80.8585586547852
1981	80.9994506835938
1982	81.6966400146484
1983	82.5189971923828
1984	82.5494079589844
1985	82.6404037475586
1986	82.6768264770508
1987	83.0551681518555
1988	83.1849822998047
1989	83.9207077026367
1990	85.2742919921875
1991	87.7055130004883
1992	89.9542465209961
1993	100.886840820312
1994	101.422523498535
1995	100.937980651855
1996	99.3127365112305
1997	97.0575714111328
1998	96.9471282958984
1999	99.7466278076172
2000	100.501892089844
2001	100.625457763672
2002	101.827346801758
2003	100.73072052002
2004	104.080543518066
2005	104.889892578125
2006	97.6089096069336
2007	97.0441131591797
2008	98.1302108764648
2009	100.178993225098
2010	103.237701416016
2011	93.6342391967773
2012	92.1421432495117
2013	122.662261962891
2014	125.644187927246
2015	123.667602539062
2017	123.531723022461
2018	118.277450561523
2019	115.359802246094
2020	112.37574005127
2021	111.033027648926
2022	110.18335723877