Year % (modeled ILO estimate) 1991 52.906461601905185 1992 53.90150670391904 1993 54.954852280335636 1994 56.007901306301704 1995 57.2463840230435 1996 57.629724535477884 1997 58.66016765129745 1998 59.37556602975464 1999 59.89622561679842 2000 60.330072077806854 2001 61.38309249339122 2002 62.15624436665386 2003 62.83340539157896 2004 63.88527476752068 2005 64.73831180201377 2006 65.09331491359252 2007 65.39711936741297 2008 65.45443426618851 2009 66.34504462374841 2010 66.0631313720759 2011 65.76965262824835 2012 66.18557761670597 2013 66.23130948850887 2014 66.14202349812348 2015 66.59075616883362 2016 67.1114914609482 2017 67.58521702112871 2018 68.2212296804024 2019 68.95348588420286 2020 67.07658859527302 2021 68.1044156154732 2022 68.67072100757335 2023 68.98795792486506