Year % of total secondary 1999 24.9902095794678 2000 25.0311794281006 2001 25.0991897583008 2002 25.1153507232666 2003 25.3090801239014 2004 25.3044891357422 2005 25.016450881958 2006 25.2358703613281 2007 25.5883407592773 2008 25.9175891876221 2009 25.9322299957275 2010 26.1683006286621 2011 26.1503791809082 2012 26.1690998077393 2013 26.1211891174316 2014 25.8758106231689 2015 25.3910503387451 2016 25.2854804992676 2017 25.2106800079346 2018 25.2049198150635 2019 25.2770004272461 2020 25.3131904602051 2021 25.5570201873779 2022 25.9491195678711