Year % of total employment (modeled ILO estimate) 1991 38.49778377224079 1992 38.62268110096483 1993 38.779343933370036 1994 38.935752286745526 1995 39.12645476902647 1996 39.43588369897068 1997 39.661412021593556 1998 39.733763226038846 1999 39.98865425350346 2000 40.268396236331895 2001 40.78560060448128 2002 41.15980237648416 2003 41.518500106262884 2004 42.359210964246294 2005 43.08212508635691 2006 43.741832315806974 2007 44.34384485896858 2008 44.91750476921029 2009 45.19043637667912 2010 45.6570904948238 2011 46.48773883239105 2012 47.486629267973306 2013 48.04956940156434 2014 48.76505488649927 2015 49.43200868993806 2016 49.982872820630476 2017 50.108602680850204 2018 50.82192894126444 2019 51.10542727030435 2020 50.022863271305205 2021 50.14530113683963 2022 49.98171047946208