Year	% (modeled ILO estimate)
1991	43.961
1992	44.644
1993	44.282
1994	44.718
1995	44.465
1996	44.518
1997	44.762
1998	44.424
1999	43.031
2000	43.176
2001	42.552
2002	41.355
2003	40.664
2004	40.925
2005	41.804
2006	42.191
2007	41.511
2008	41.896
2009	41.262
2010	40.439
2011	40.572
2012	38.897
2013	40.955
2014	41.201
2015	40.956
2016	42.973
2017	43.304
2018	46.693
2019	48.423
2020	47.238
2021	47.748
2022	47.983
2023	49.138