Year	% (modeled ILO estimate)
1991	60.15
1992	61.26
1993	59.25
1994	62.11
1995	58.32
1996	54.81
1997	47.75
1998	46.59
1999	42.7
2000	43.16
2001	38.83
2002	37.24
2003	47.22
2004	46.58
2005	40.6
2006	40.56
2007	43.46
2008	44.31
2009	43.68
2010	40.99
2011	43.44
2012	44.27
2013	41.28
2014	41.12
2015	45.72
2016	46.1
2017	49.7
2018	49.56
2019	46.26
2020	44.72
2021	40.54
2022	41.328
2023	42.845