Year	% gross
2001	32.2377014160156
2002	34.6987800598145
2003	34.0757484436035
2004	32.7382698059082
2005	31.3311595916748
2006	30.6782894134521
2007	27.1648597717285
2008	28.477970123291
2009	30.3214206695557
2010	31.6233596801758
2011	54.0285491943359
2012	60.1769218444824
2013	39.3400001525879
2015	56.5849304199219
2016	57.313060760498
2017	62.3363494873047
2018	72.7366561889648
2019	75.9626388549805
2020	79.0432434082031
2021	73.8528366088867