Year % of total employment (modeled ILO estimate) 1991 11.466933277420974 1992 11.344228575423669 1993 11.293366890532386 1994 11.260896972911038 1995 11.25936076041925 1996 11.269355047693924 1997 11.283448951791632 1998 11.319185671534738 1999 11.399860356879042 2000 11.514468860539646 2001 11.757025652043387 2002 11.953871842257534 2003 12.188199798517127 2004 12.33103134573639 2005 12.497926630254524 2006 12.651978075246022 2007 12.862175137244524 2008 12.957226449577481 2009 13.203045555297955 2010 13.466000522591068 2011 13.643337301894462 2012 13.897100820905576 2013 14.22501958078482 2014 14.43585092871636 2015 14.66348458129242 2016 14.588796203774667 2017 14.720917987294728 2018 14.888288410825373 2019 14.9006432457728 2020 15.166893697514231 2021 15.402992330263432 2022 15.466811216344087