Year	% of internal resources
2000	12.76955223880597
2001	12.80005970149254
2002	12.830567164179104
2003	12.861074626865673
2004	12.891582089552237
2005	12.922089552238806
2006	12.922089552238806
2007	12.922089552238806
2008	12.922089552238806
2009	12.922089552238806
2010	12.922089552238806
2011	12.922089552238806
2012	12.922089552238806
2013	12.922089552238806
2014	12.922089552238806
2015	12.922089552238806
2016	12.922089552238806
2017	12.922089552238806
2018	12.922089552238806
2019	12.922089552238806
2020	12.922089552238806