Year	% of internal resources
2000	4.824672048435923
2001	4.818072653884965
2002	4.811473259334006
2003	4.804873864783048
2004	4.798274470232089
2005	4.79167507568113
2006	4.79167507568113
2007	4.79167507568113
2008	4.79167507568113
2009	4.79167507568113
2010	4.79167507568113
2011	4.79167507568113
2012	4.79167507568113
2013	4.79167507568113
2014	4.79167507568113
2015	4.79167507568113
2016	4.79167507568113
2017	4.79167507568113
2018	4.79167507568113
2019	4.79167507568113
2020	4.79167507568113