Year % of total employment (modeled ILO estimate) 1991 8.81431232981417 1992 8.80093433888644 1993 8.7124971758455 1994 8.64229708638442 1995 8.69533002624834 1996 8.78556653416991 1997 8.98122706275819 1998 8.97736868049673 1999 9.12588765956794 2000 9.22347524459861 2001 9.32509239953796 2002 9.51956412321025 2003 9.81002889934299 2004 10.1465496135147 2005 10.4260293544616 2006 10.7782500089287 2007 12.1298043915007 2008 13.7192542990105 2009 15.5693645770715 2010 17.6004531594085 2011 19.79587775939 2012 20.4740869000595 2013 21.2897633495427 2014 22.1913891345936 2015 22.9654683051997 2016 23.4084367699116 2017 23.8060899326818 2018 24.2363575342311 2019 24.4947413391845 2020 24.3640654411826 2021 24.5990910503691 2022 24.9733944488608