Year % of total employment (modeled ILO estimate) 1991 3.1648060397156668 1992 3.226799380156267 1993 3.2931797301496974 1994 3.4061201878559912 1995 3.4603592173230884 1996 3.493200641482063 1997 3.68544212757276 1998 3.713227401274347 1999 3.72403124815781 2000 3.71065048011098 2001 3.7118510913141356 2002 3.7123972060974073 2003 3.7424744664792495 2004 3.8392821131919597 2005 3.8239097474690094 2006 3.888425888754134 2007 3.876833342330745 2008 3.885910578956823 2009 3.8843074024754998 2010 3.8494347087988277 2011 3.7694133877852374 2012 3.705022029261048 2013 3.7097809485120563 2014 3.690075084774447 2015 3.699897812482228 2016 3.6893729303541276 2017 3.667047587487772 2018 3.6456835469324718 2019 3.6623198270483823 2020 3.585101981709972 2021 3.6881013871860135 2022 3.8256826869593032