Year	% of internal resources
2008	0.8263254113345522
2009	0.9714854466727606
2010	1.116340789756246
2011	1.261196132833638
2012	1.4060514759171236
2013	1.5509068189945157
2014	1.6957621620719072
2015	1.8406175051553932
2016	1.985472848232785
2017	2.1303281913162704
2018	2.275183534393662
2019	2.349177330895795
2020	2.349177330895795