Year	% of revenue
2005	1.9905760729179132
2006	1.6356325418751265
2007	0.2629157920275816
2008	0.1338781813089758
2009	0.12929831586019427
2010	0.11259771159536582
2011	0.10226653290516564
2012	0.12090948630155088
2013	0.12109467934516875
2014	0.16845856434152287
2015	0.11385052975348105
2016	0.13720698562499525
2017	0.12969602750789858
2018	0.1570057554360983
2019	0.14161351338057276
2020	0.1779418952527342