Year	% gross
1999	47.6438484191895
2000	47.851188659668
2001	44.3894500732422
2002	38.3510894775391
2003	37.9449310302734
2004	41.7251815795898
2005	43.3994216918945
2006	51.8470611572266
2007	56.1051712036133
2008	55.7568206787109
2009	55.9362106323242
2010	57.9452781677246
2011	62.4640502929688
2012	64.1820983886719
2013	69.7592620849609
2014	50.8840599060059
2015	54.2980918884277
2016	54.4507789611816
2017	57.7364807128906
2018	60.3632583618164
2019	60.585750579834
2020	61.307300567627