Year	% gross
1971	15.2403402328491
1972	16.2391300201416
1978	5.06006002426147
1981	4.15240001678467
1983	5.10206985473633
1984	5.91660022735596
1985	6.65691995620728
1986	6.93229007720947
1987	6.90143013000488
1988	7.18056011199951
1989	7.60691976547241
1990	7.8272500038147
1991	8.45269012451172
1992	8.75654983520508
1993	10.8273401260376
1994	9.77974987030029
1995	9.60340023040771
1996	10.2983503341675
1997	11.3423099517822
1998	12.1117401123047
1999	12.2395095825195
2000	12.8178997039795
2001	12.5037603378296
2002	12.5586395263672
2003	12.6611604690552
2004	15.3045301437378
2005	18.7310390472412
2006	22.9161891937256
2007	26.3657093048096
2008	28.3590793609619
2009	28.7321491241455
2010	38.5241394042969
2011	42.9519996643066
2012	51.6657600402832
2013	56.8587493896484
2014	57.7467498779297
2015	54.4499282836914
2016	49.7862396240234
2017	47.9954605102539
2018	45.4428787231445
2019	49.9221382141113
2020	48.9976997375488
2021	47.4206008911133
2022	50.5954513549805