Year	% (modeled ILO estimate)
1991	64.7
1992	64.448
1993	65.195
1994	60.833
1995	59.108
1996	61.926
1997	62.284
1998	59.118
1999	65.387
2000	63.362
2001	63.205
2002	65.375
2003	62.247
2004	61.047
2005	58.783
2006	61.989
2007	59.652
2008	61.189
2009	62.29
2010	61.471
2011	62.505
2012	60.911
2013	61.153
2014	61.652
2015	62.553
2016	63.147
2017	62.322
2018	62.566
2019	61.543
2020	59.383
2021	58.535
2022	58.601
2023	59.119