Year	% of total secondary
1998	0
2000	0
2001	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	1.74788999557495
2010	0
2011	2.64221000671387
2012	2.61005997657776
2013	3.8156099319458
2015	1.14813005924225
2016	1.30853998661041
2017	4.7188401222229