Year	% (modeled ILO estimate)
1991	62.53
1992	62.633
1993	62.515
1994	62.447
1995	62.847
1996	63.09
1997	63.314
1998	63.508
1999	63.625
2000	63.598
2001	63.73
2002	63.582
2003	63.251
2004	62.85
2005	62.569
2006	62.446
2007	62.334
2008	62.149
2009	61.778
2010	61.195
2011	60.937
2012	60.584
2013	60.257
2014	59.735
2015	58.955
2016	58.342
2017	57.825
2018	57.34
2019	56.866
2020	56.373
2021	56.262
2022	56.983
2023	57.516