Year	% gross
1976	1.31342005729675
1977	1.29463994503021
1978	1.4140499830246
1979	1.52714002132416
1981	0.973169982433319
1998	7.55269002914429
1999	8.97023010253906
2000	7.69718980789185
2001	7.84543991088867
2002	8.26873016357422
2003	8.70151996612549
2005	13.387490272522
2006	16.6284694671631
2007	18.9481601715088
2008	19.5502796173096
2009	21.0396595001221
2010	23.9179992675781
2011	26.363000869751
2013	25.1870002746582
2014	33.2949981689453
2015	30.7929992675781
2016	33.2179985046387
2021	38.6189994812012
2022	43.5830001831055