Year	% of internal resources
1985	2.32
1986	2.41824
1987	2.51648
1988	2.61472
1989	2.71296
1990	2.8112
1991	2.9096
1992	3.008
1993	3.1619555552
1994	3.3159111112000006
1995	3.4698666664
1996	3.6238222224
1997	3.7777777776
1998	4.64
1999	4.912
2000	5.184
2001	5.456
2002	5.728
2003	6
2004	6.272
2005	6.544
2006	6.544
2007	6.544
2008	6.544
2009	6.544
2010	6.544
2011	6.544
2012	6.544
2013	6.544
2014	6.544
2015	6.544
2016	6.544
2017	6.544
2018	6.544
2019	6.544
2020	6.544