Year % of total employment (modeled ILO estimate) 1991 20.6621433672894 1992 20.9252429183907 1993 21.4744229802202 1994 21.9286864995894 1995 22.1202921127827 1996 22.3297671389355 1997 22.5644189391834 1998 22.7241395109683 1999 23.0528029689362 2000 23.3218199418387 2001 23.5598236181852 2002 24.0178013711764 2003 24.1080394602563 2004 24.1271239795272 2005 23.4410786345294 2006 23.3836143500924 2007 23.612138849162 2008 23.192794521449 2009 23.9366369412482 2010 23.6062374909007 2011 24.3245421705902 2012 24.7265044247147 2013 24.122218901708 2014 25.5153046066592 2015 24.7799777857976 2016 25.6054659046631 2017 25.2342580518883 2018 26.1322417005609 2019 26.8058351760784 2020 26.4854360038083 2021 26.5819038418912 2022 26.9831108582087