Year % of total employment (modeled ILO estimate) 1991 26.919003079939475 1992 27.366086224278384 1993 28.221359217479137 1994 29.03586713435474 1995 29.966904773394656 1996 30.660730928893305 1997 31.12930461477609 1998 31.429776649304742 1999 31.63219855979032 2000 32.02268618634836 2001 32.54169599959629 2002 33.280382133684334 2003 33.923851168648454 2004 34.86650694510054 2005 35.49185827391067 2006 36.05250547310126 2007 36.31177543772245 2008 36.737582336168565 2009 37.23982842320639 2010 37.532507732329364 2011 38.23140671898019 2012 38.72995592784545 2013 39.80798841595478 2014 40.84839916785218 2015 41.83642498426403 2016 42.36483950473197 2017 42.85998601043452 2018 43.46194016330886 2019 44.00129959267258 2020 43.34154721428736 2021 43.413435803691556 2022 43.539131914317295