Year	% gross
2000	1.53521001338959
2001	1.33394002914429
2002	3.28927993774414
2003	3.79977011680603
2004	5.15567016601562
2005	6.7593297958374
2006	7.595290184021
2007	8.21181964874268
2008	9.99629020690918
2009	12.3309602737427
2010	14.9422597885132
2011	16.5285491943359
2012	16.2439994812012
2013	17.3755302429199
2014	17.7624607086182
2015	16.8349704742432
2016	16.9788208007812
2017	17.1080493927002
2018	16.3592796325684