Year	% (modeled ILO estimate)
1991	81.89
1992	81.249
1993	80.714
1994	79.914
1995	79.302
1996	78.711
1997	78.046
1998	77.298
1999	76.47
2000	75.601
2001	74.79
2002	73.908
2003	73.205
2004	71.842
2005	70.648
2006	70.037
2007	69.503
2008	68.521
2009	67.508
2010	66.687
2011	65.761
2012	64.895
2013	63.856
2014	62.812
2015	62.605
2016	62.481
2017	62.406
2018	62.353
2019	62.279
2020	61.402
2021	61.65
2022	61.958
2023	61.835