Year % of total employment (modeled ILO estimate) 1991 23.4715795880455 1992 23.0568063193811 1993 22.6431456790587 1994 22.2495423554519 1995 21.7562224920466 1996 22.7845436760922 1997 22.5665817484109 1998 24.9109953169176 1999 25.6585585224359 2000 27.065266831616 2001 26.077997128794 2002 25.5893731264321 2003 25.2943470021264 2004 25.040025968917 2005 23.9024640076944 2006 24.018386564085 2007 24.0180866353841 2008 23.5066847907604 2009 22.4891612604392 2010 23.0377649335775 2011 23.0731681748164 2012 22.8968077758738 2013 23.1770393713856 2014 23.6488391095162 2015 24.0104180314192 2016 24.4459597463107 2017 24.7887813289856 2018 24.913461810134 2019 24.5354501274629 2020 24.1295050336279 2021 24.5148961819179 2022 25.0269994052711