Year % of total employment (modeled ILO estimate) 1991 39.40913903085134 1992 39.98945265980617 1993 41.41014766204037 1994 40.862678851962045 1995 41.53637556132922 1996 42.33613210691859 1997 43.296889834402485 1998 43.6374370917429 1999 44.08125511589735 2000 44.983479562491176 2001 45.238850580567394 2002 46.1481110355822 2003 46.68238538921564 2004 47.79802038821898 2005 48.53756227367301 2006 49.30400166052805 2007 49.78012768245018 2008 50.08697431108892 2009 50.73754497619797 2010 50.544775835864 2011 50.535443055182526 2012 51.03457319606568 2013 51.5287864849501 2014 52.06553644840419 2015 53.077309994968665 2016 53.665480187883006 2017 54.016319542426565 2018 54.517117357551214 2019 55.26172418599351 2020 54.95483832570469 2021 54.53078745130992 2022 53.47792527883632