Year % of total employment (modeled ILO estimate) 1991 4.42852723934037 1992 3.64100801474839 1993 3.60801275699109 1994 3.47986985411272 1995 3.79157970559444 1996 3.22318151794543 1997 3.13190773928137 1998 3.33910214206295 1999 3.00742406779186 2000 2.58257593993767 2001 2.57635667653674 2002 2.77832449294901 2003 2.45641027788429 2004 2.27058013862902 2005 2.05584843612203 2006 1.99495504719525 2007 1.66379604791816 2008 1.48197549243036 2009 1.51043606971357 2010 1.60392360635547 2011 1.68916017658841 2012 1.7191028007269 2013 2.24219385914122 2014 2.16059931670157 2015 2.35051567201599 2016 2.04218945453167 2017 1.80469677836146 2018 1.59790573951228 2019 1.80080513143843 2020 1.84492678015341 2021 1.4859387974007 2022 1.3517960672443