Year	% of youth population
1998	23.78
1999	23.903
2001	21.452
2002	25.028
2003	21.848
2004	20.568
2005	18.877
2006	19.186
2007	19.558
2008	17.552
2009	18.007
2010	19.5
2011	16.908
2012	16.016
2013	14.584
2014	16.831
2015	17.45
2016	18.568
2017	18.586