Year	% (modeled ILO estimate)
1991	47.117
1992	45.828
1993	44.778
1994	44.967
1995	45.065
1996	44.476
1997	44.354
1998	45.665
1999	45.437
2000	46.393
2001	46.865
2002	43.956
2003	43.024
2004	42.072
2005	43.085
2006	43.843
2007	45.383
2008	45.485
2009	41.656
2010	39.862
2011	41.579
2012	39.891
2013	39.379
2014	39.764
2015	40.847
2016	41.213
2017	41.884
2018	42.793
2019	42.597
2020	41.182
2021	41
2022	42.884
2023	42.912