Year	% of internal resources
1992	0.6058091286307054
1993	0.6151452282157676
1994	0.6244813278008298
1995	0.6338174273858922
1996	0.6431535269709544
1997	0.6524896265560166
1998	0.6618257261410788
1999	0.6711618257261411
2000	0.6804979253112033
2001	0.6741244813278009
2002	0.6677510373443983
2003	0.6613775933609958
2004	0.6550041493775933
2005	0.6486307053941909
2006	0.6387966804979254
2007	0.6289626556016598
2008	0.6191286307053943
2009	0.6092946058091286
2010	0.5994605809128631
2011	0.5994605809128631
2012	0.5994605809128631
2013	0.5994605809128631
2014	0.5994605809128631
2015	0.5994605809128631
2016	0.5994605809128631
2017	0.5994605809128631
2018	0.5994605809128631
2019	0.5994605809128631
2020	0.5994605809128631