Year	% gross
2003	11.3984699249268
2004	13.2586402893066
2005	14.3667297363281
2006	18.071159362793
2007	20.1506595611572
2008	24.9056606292725
2009	22.5471706390381
2010	27.3576107025146
2011	29.9351291656494
2012	30.0724601745605
2014	24.1410503387451
2015	21.8891906738281
2016	24.751579284668
2017	27.3550701141357
2018	27.5909099578857
2019	29.8840293884277
2020	31.7431201934814
2021	36.329231262207