Year % of total employment (modeled ILO estimate) 1991 2.48534983846731 1992 2.55879311716202 1993 2.63379291320037 1994 2.73979443634793 1995 2.92894954913809 1996 3.12827069714848 1997 3.3661072718274 1998 3.59062052040131 1999 3.84474460396666 2000 4.11443975637997 2001 4.35940958426493 2002 4.58755079462056 2003 4.79467290408334 2004 5.02943841797579 2005 5.24492207546218 2006 5.47425571350608 2007 5.09412866674902 2008 5.85151666970862 2009 7.23969630415828 2010 6.74496931808445 2011 5.8393964970213 2012 6.91895996010153 2013 7.13220651337582 2014 5.9466401566953 2015 6.73638775656706 2016 6.21529572727581 2017 5.95737644681242 2018 5.76843986175413 2019 5.41615576496358 2020 5.09831920899709 2021 4.87483179107821 2022 4.65515616101544