Year % of total employment (modeled ILO estimate) 1991 33.4807302150704 1992 33.6833509897513 1993 33.8621852418343 1994 34.10282248745 1995 34.3787578977772 1996 34.7066480775853 1997 35.1122867334642 1998 35.5166648591324 1999 35.9472373705385 2000 36.3202910764864 2001 36.7148996488338 2002 36.9194809223487 2003 37.083868636616 2004 37.8675501815633 2005 38.4645861347299 2006 38.942209412376 2007 39.4138420638192 2008 39.9309150674648 2009 40.4967903911157 2010 41.2164653448502 2011 41.237648169747 2012 42.188008490424 2013 43.0123252290111 2014 43.6803693321461 2015 44.4637135281231 2016 44.9889957313995 2017 45.5938334858292 2018 44.5676706829279 2019 43.6094933934498 2020 43.2950753127314 2021 43.4813537784583 2022 43.9639896533325