Year % of total employment (modeled ILO estimate) 1991 38.6661445144109 1992 38.5436296909989 1993 38.6558066331748 1994 39.5063243226478 1995 40.2882206315838 1996 41.6189819595728 1997 42.9078695678622 1998 44.9888783715048 1999 44.8727175100718 2000 46.6771130954103 2001 47.1415213619124 2002 47.4732712214138 2003 48.0222938737789 2004 48.4350372460417 2005 48.9266350640568 2006 49.4966280984525 2007 49.9906600546577 2008 50.2252187111625 2009 50.8455316630499 2010 51.4766384358801 2011 52.0302504232134 2012 52.5645241183687 2013 53.375237375563 2014 53.6449827615261 2015 54.6208428048817 2016 55.5510030952476 2017 56.2877105032996 2018 56.6424398373253 2019 58.0256483901627 2020 56.9301201544276 2021 56.8103111748047 2022 57.3764662561213