Year	% gross
1973	31.550479888916
1977	90.1702728271484
1978	93.2350311279297
1979	94.2228622436523
1981	88.6498107910156
1982	80.5198974609375
1983	72.9486999511719
1984	76.3362121582031
1985	76.8265762329102
1986	76.8590393066406
1987	62.9715690612793
1988	59.3402404785156
1989	59.9345016479492
1990	61.4565811157227
1991	58.0469398498535
1992	56.4023399353027
1993	56.2432289123535
1994	56.710880279541
1995	57.6495590209961
1998	55.822639465332
1999	60.4789009094238
2000	65.781379699707
2001	72.1253280639648
2002	76.0126266479492
2004	86.9427719116211
2005	93.8357696533203
2006	97.0436019897461
2007	103.371078491211
2008	108.205207824707
2009	109.52311706543
2010	110.692337036133
2011	107.486038208008
2012	106.86092376709
2013	108.417022705078
2014	108.658988952637
2015	109.188316345215
2016	109.14185333252
2017	107.74658203125
2018	111.835098266602
2019	115.009841918945
2020	116.64315032959
2021	113.024002075195
2022	118.00756072998
