Year % of total employment (modeled ILO estimate) 1991 5.03065029261738 1992 5.07372965122143 1993 5.12094042637976 1994 5.17322508095003 1995 5.22884965307632 1996 5.28835158309493 1997 5.35226255834764 1998 5.41517123912647 1999 5.48131287172333 2000 5.54567814043631 2001 5.61437054680771 2002 5.67766022616268 2003 5.73207951827106 2004 5.78049620951068 2005 5.81766395717037 2006 5.85178079197581 2007 5.88541687696588 2008 5.91287101572546 2009 5.93431492710618 2010 5.95107379299209 2011 5.96319157187177 2012 5.97169457862147 2013 5.97294468218223 2014 5.96504574482993 2015 5.9471242300616 2016 5.91985755292859 2017 5.88239982465579 2018 5.82971580714244 2019 5.86829020801624 2020 5.79737035194103 2021 5.72954076485217 2022 5.6523269286282