Year % (modeled ILO estimate) 1991 54.79591709870326 1992 55.840391774729525 1993 57.227160865853044 1994 57.44447801782747 1995 59.01272071387886 1996 59.65908369215918 1997 60.66813781139584 1998 61.75475903768799 1999 62.57085930972427 2000 63.14148001134109 2001 63.8458554248028 2002 65.19977139294436 2003 66.742358990421 2004 67.76264081739586 2005 68.58675219854614 2006 69.97018784297171 2007 70.64506323760688 2008 71.03556872915895 2009 70.81475208087973 2010 70.35738849796307 2011 70.36546960594914 2012 70.67846451373619 2013 71.05120078505219 2014 71.26479486226846 2015 71.40999270121425 2016 71.83064901929518 2017 72.11350423711903 2018 72.5481838645657 2019 72.63812835578294 2020 72.3838770535825 2021 73.3168445361501 2022 72.72170683987062 2023 73.12243515677915