Year % of total employment (modeled ILO estimate) 1991 2.28523580351781 1992 2.32558556255458 1993 2.36952353396663 1994 2.40848671531519 1995 2.44840098572135 1996 2.49229011993147 1997 2.56695811942016 1998 2.6403385827231 1999 2.70486956799173 2000 2.7624750499002 2001 2.80416377828925 2002 2.82700167335227 2003 2.83649270903345 2004 2.82640832035774 2005 2.8014212451485 2006 2.76544213341208 2007 2.71530059344629 2008 2.64996308226569 2009 2.47603809232436 2010 2.40319025826466 2011 2.32675911994941 2012 2.11736551324577 2013 1.97251879759583 2014 1.87000726672446 2015 1.71452234642858 2016 1.59698487645339 2017 1.51791378620167 2018 1.45155321894204 2019 1.38538626056304 2020 1.23733940623107 2021 1.2214991227273 2022 1.18066158299086