Year	% gross
2001	19.6345195770264
2002	19.2484703063965
2003	23.4771995544434
2004	22.6905097961426
2005	22.1701107025146
2006	24.6078205108643
2007	24.3398609161377
2008	28.2571392059326
2009	33.5477714538574
2010	32.4201393127441
2011	36.4535598754883
2012	37.0456199645996
2013	49.1232414245605
2014	44.8111305236816
2015	44.5288581848145
2016	46.1804389953613
2017	47.0984115600586
2018	47.4313507080078