Year	% gross
2001	25.516529083252
2003	35.8880500793457
2004	44.4809799194336
2005	43.8242988586426
2008	38.3099212646484
2009	40.6091690063477
2010	41.8311882019043
2011	43.1699981689453
2014	15.0458202362061
2015	23.9944496154785
2016	15.8845195770264
2017	19.6549797058105
2018	23.4557495117188