Year	% (modeled ILO estimate)
1991	59.374
1992	59.397
1993	59.402
1994	59.379
1995	59.337
1996	59.241
1997	59.14
1998	59.199
1999	59.14
2000	59.047
2001	59.054
2002	59.043
2003	58.982
2004	59.336
2005	59.25
2006	58.932
2007	59.159
2008	58.798
2009	59.068
2010	59.212
2011	59.996
2012	59.569
2013	59.299
2014	59.932
2015	59.525
2016	59.927
2017	57.632
2018	57.6
2019	58.109
2020	53.37
2021	54.55
2022	58.053
2023	58.891