Year	% of internal resources
2000	1.047323943661972
2001	1.052394366197183
2002	1.0577464788732394
2003	1.0630985915492959
2004	1.067605633802817
2005	1.0667605633802817
2006	1.071549295774648
2007	1.0974647887323945
2008	1.103943661971831
2009	1.2109859154929579
2010	1.2264788732394365
2011	1.1932394366197183
2012	1.2329577464788732
2013	1.227605633802817
2014	1.1616901408450704
2015	1.1788732394366197
2016	1.1819718309859153
2017	1.1292957746478873
2018	0.8788732394366197
2019	0.8605633802816901
2020	0.8486760563380281