Year % (modeled ILO estimate) 1991 53.02 1992 47.92 1993 44.52 1994 41.1 1995 48.09 1996 45.62 1997 44.74 1998 47.43 1999 47.858 2000 48.286 2001 48.715 2002 49.143 2003 49.572 2004 50.001 2005 50.43 2006 51.03 2007 53.58 2008 53.51 2009 51.17 2010 49.33 2011 50.51 2012 52.03 2013 52.9 2014 52.61 2015 53.3 2016 53.14 2017 54.16 2018 54.7 2019 53.48 2020 51.36 2021 52.66 2022 54.557 2023 56.421