Year % of total labor force (modeled ILO estimate) 1991 4.410374713279376 1992 4.468331512496288 1993 4.666058884183703 1994 4.9361011793983085 1995 5.227531532312689 1996 5.35170168183651 1997 5.4266978218695545 1998 5.641747710116396 1999 5.850445909797678 2000 5.862196264456965 2001 6.068716926587963 2002 6.301848484985505 2003 6.413170638292585 2004 6.326554592476121 2005 6.347736426115569 2006 6.143977518247403 2007 6.044518498939034 2008 6.024732905666361 2009 6.227353262684846 2010 5.9991026735411985 2011 5.903073313782302 2012 5.90709729851792 2013 5.859713273667994 2014 5.826188203080185 2015 6.004339349519188 2016 6.072052177977136 2017 6.0885967228178055 2018 6.015355481613135 2019 5.864934244888718 2020 6.705382593729026 2021 6.197700771751343 2022 5.484015493162886 2023 5.076885462904961