Year	% (modeled ILO estimate)
1991	55.63
1992	54.12
1993	52.75
1994	53.01
1995	55.4
1996	60.46
1997	61.48
1998	64.61
1999	62.97
2000	63.79
2001	64.72
2002	66.01
2003	63.18
2004	64.41
2005	60.1
2006	57.96
2007	60.14
2008	62.24
2009	58.93
2010	56.85
2011	56.62
2012	57.82
2013	58.2
2014	55.82
2015	56.62
2016	55.17
2017	53.97
2018	54.52
2019	55.75
2020	55.69
2021	62.72
2022	65.216
2023	66.548