Year	% (modeled ILO estimate)
1991	45.455
1992	45.28
1993	44.586
1994	44.112
1995	43.879
1996	43.782
1997	43.337
1998	43.691
1999	42.725
2000	40.798
2001	40.079
2002	38.714
2003	38.613
2004	38.125
2005	38.67
2006	39.719
2007	41.597
2008	43.027
2009	43.302
2010	43.457
2011	43.405
2012	43.506
2013	43.415
2014	44.504
2015	45.299
2016	46.031
2017	46.781
2018	47.374
2019	47.216
2020	47.089
2021	48.581
2022	49.808
2023	50.174