Year % of total employment (modeled ILO estimate) 1991 9.94422171866829 1992 10.1188210918009 1993 9.80235207191675 1994 11.8557112628259 1995 8.72262214734262 1996 7.33913957504317 1997 6.39130350982017 1998 6.41740858201826 1999 5.99831839567792 2000 5.51964795269364 2001 5.47200110510594 2002 5.5037329517044 2003 5.47201984188498 2004 5.45442488146159 2005 5.38014092721913 2006 5.35306326618984 2007 5.34538651585907 2008 5.36538965246281 2009 5.33987347063906 2010 5.27685754850923 2011 5.23959795921204 2012 5.22322381053979 2013 5.22063138930214 2014 5.1796490947604 2015 5.13926418623987 2016 5.10393631136665 2017 5.04971993979322 2018 4.99225108911858 2019 4.85897466005965 2020 4.71327674463811 2021 7.16212537431633 2022 5.83998801580991