Year % of total employment (modeled ILO estimate) 1991 21.847214801563993 1992 21.996221905096295 1993 22.408771596964733 1994 22.60224026205059 1995 22.746921268090865 1996 23.057197842205223 1997 23.126336631382152 1998 22.907898243072857 1999 22.553545574105357 2000 22.290402726279314 2001 22.19529301576044 2002 21.66979739074871 2003 21.685740053539146 2004 22.333290079822895 2005 23.226647003336147 2006 24.11680771914368 2007 25.144736098406113 2008 25.302080901340275 2009 25.480134077103177 2010 26.060062397127407 2011 26.578792155378846 2012 27.153607355708303 2013 27.0729541795994 2014 27.09674952440629 2015 26.703960089166703 2016 26.77280025157487 2017 26.932566604219776 2018 27.175244515528206 2019 27.31202703445625 2020 27.6061211467959 2021 28.005645718406832 2022 28.058370912350686