Year % of total employment (modeled ILO estimate) 1991 12.4019503921984 1992 12.4248081310931 1993 12.4695510961605 1994 12.6824817518248 1995 12.7367397150541 1996 12.8062264855395 1997 12.8828725478949 1998 12.9387592032418 1999 12.9977844685565 2000 13.1011420636495 2001 13.2108065246942 2002 13.3123511398435 2003 13.3702914001421 2004 13.4442231634456 2005 13.5623219668686 2006 13.7614428945074 2007 13.7764827623768 2008 13.8553561718325 2009 13.8781615447376 2010 13.8794486283679 2011 13.9021869219889 2012 13.9046630992683 2013 13.901332966882 2014 13.9516196070825 2015 13.9340831077498 2016 13.9240861179637 2017 13.8821675763885 2018 13.8580899985894 2019 13.8071322353469 2020 13.8673970746033 2021 13.9111333555778 2022 13.8721906309234