Year % of total labor force (modeled ILO estimate) 1991 4.996340371890472 1992 5.149938542275324 1993 5.417837097809023 1994 5.667754060036293 1995 5.820785713248816 1996 5.908677924301973 1997 5.954035657868693 1998 6.1252306804045595 1999 6.2655275379495565 2000 6.131118021170141 2001 6.223468309292823 2002 6.4683081011852375 2003 6.571283005091196 2004 6.449676885365653 2005 6.3664652113873155 2006 6.106585938410638 2007 5.899676616058557 2008 5.9366940461403725 2009 6.514687122398988 2010 6.3894647272359615 2011 6.240482043304538 2012 6.2282727979959525 2013 6.167133899400997 2014 6.016228572718611 2015 6.048849020243364 2016 6.010331345046845 2017 5.9161414199920515 2018 5.756397903222194 2019 5.582980104376296 2020 6.585287531430707 2021 6.033761292292787 2022 5.264615972883184 2023 4.961430650474157