Year % of total employment (modeled ILO estimate) 1991 4.48691089938608 1992 4.51115574615927 1993 4.53392802546625 1994 4.55329976334941 1995 4.58917480035492 1996 4.60766585115059 1997 4.62656040623457 1998 4.66003375052735 1999 4.68851366752582 2000 4.70245818283831 2001 4.72118828569422 2002 4.73539554995361 2003 4.76339978720806 2004 4.77027191593744 2005 4.78467241797457 2006 4.81033534909291 2007 4.8012962647109 2008 4.81600270087779 2009 4.8423854279298 2010 4.87844967866007 2011 4.90718557994752 2012 4.92358241648828 2013 4.92400019676324 2014 4.93753139634749 2015 4.93361691157515 2016 4.92600558569548 2017 4.92660301875966 2018 4.92926683260342 2019 4.91928685171886 2020 4.96833216045039 2021 4.98366890037263 2022 4.97275003682427