Year	% of internal resources
1991	0.8941176470588236
1992	0.9568627447058824
1993	1.0196078435294118
1994	1.0823529411764705
1995	1.0823529411764705
1996	1.0823529411764705
1997	1.0823529411764705
1998	1.0823529411764705
1999	1.0823529411764705
2000	1.0823529411764705
2001	1.0823529411764705
2002	1.0823529411764705
2003	1.0823529411764705
2004	1.0823529411764705
2005	1.0823529411764705
2006	1.0823529411764705
2007	1.0823529411764705
2008	1.0823529411764705
2009	1.0823529411764705
2010	1.0823529411764705
2011	1.0823529411764705
2012	1.0823529411764705
2013	1.0823529411764705
2014	1.0823529411764705
2015	1.0823529411764705
2016	1.0823529411764705
2017	1.0823529411764705
2018	1.0823529411764705
2019	1.0823529411764705
2020	1.0823529411764705