Year	% gross
2010	14.6000003814697
2011	6.39754009246826
2012	8.31828022003174
2013	9.1143798828125
2015	9.75774955749512
2016	13.1825799942017
2017	12.9529104232788
2018	14.6424398422241
2019	20.3509101867676
2020	21.8865299224854
2021	26.0095596313477