Year % of total employment (modeled ILO estimate) 1991 2.78787598119805 1992 2.7553227826483 1993 2.71852514156768 1994 2.6786721729515 1995 2.63425717734492 1996 2.58563208455782 1997 2.53007051016176 1998 2.47083212804937 1999 2.40612028188049 2000 2.33818411156011 2001 2.26835488345041 2002 2.19934699800472 2003 2.13496704724775 2004 2.07141580264569 2005 2.01267482517483 2006 1.95359409847315 2007 1.90097259062776 2008 1.84873241809147 2009 1.80005538631958 2010 1.76133861734919 2011 1.72512056115739 2012 1.69913250095268 2013 1.66542857827514 2014 1.62706737571352 2015 1.59009357630338 2016 1.54823719088603 2017 1.50263311878291 2018 1.44975204938771 2019 1.40679010691605 2020 1.3746079367244 2021 1.34480903711673 2022 1.29348563083503