Year % of total employment (modeled ILO estimate) 1991 51.0972629234585 1992 51.898359706956796 1993 53.21590213234991 1994 54.006928711875446 1995 54.447801527681335 1996 55.229735891093924 1997 55.802501789809654 1998 56.1165620781009 1999 56.69718264840685 2000 56.8345888873296 2001 57.75287093685668 2002 58.16109309952657 2003 58.2349499349968 2004 58.25219697337118 2005 58.69931484497418 2006 59.274575534826496 2007 59.654645649719626 2008 60.00454501798131 2009 61.05099409671498 2010 61.542691819386945 2011 61.54475230292514 2012 62.11102663419862 2013 62.624837109076836 2014 62.93353986937218 2015 63.15345012824183 2016 63.359328282543416 2017 64.03333433397293 2018 64.5445797701238 2019 64.7955412854491 2020 64.80306085496377 2021 65.2576914667378 2022 65.95315195187919