Year	% of revenue
2003	1.1429407132270424
2004	1.7702912201871464
2005	2.0008553018197706
2006	1.9748789346246975
2007	1.4967842432953884
2008	1.1748789040039125
2009	1.2239902080783354
2010	1.2068195223742801
2011	1.2379339417242976
2012	1.0202413484643853
2013	0.98526575801884
2014	0.8060240953849289
2015	1.0134570103520746
2016	1.0979453415426004
2017	1.108804719137084
2018	1.0042789189454489
2019	0.9443506869132466
2020	0.9588220695502083
2021	0.9012385718392961
2022	0.8536590402451805