Year	% of total secondary
1999	32.0635299682617
2000	30.4981803894043
2001	34.5382308959961
2002	29.124870300293
2004	28.2662296295166
2005	27.2230606079102
2006	26.1516799926758
2007	23.7399005889893
2008	23.2822303771973
2010	21.8335704803467
2022	21.1882705688477