Year	% of internal resources
2012	2.0693106194690265
2013	2.1824079646017696
2014	2.4280442477876107
2015	2.8265646017699115
2016	2.5864690265486727
2017	2.15929203539823
2018	2.7023539823008846
2019	2.7771061946902655
2020	2.7752920353982304