Year	% (modeled ILO estimate)
1991	46.553
1992	46.067
1993	45.557
1994	45.068
1995	44.623
1996	44.24
1997	43.892
1998	43.577
1999	43.286
2000	43.011
2001	42.9
2002	42.768
2003	42.642
2004	42.551
2005	42.511
2006	42.414
2007	42.361
2008	42.327
2009	42.273
2010	42.172
2011	42.513
2012	42.751
2013	42.905
2014	42.984
2015	42.999
2016	42.877
2017	42.671
2018	42.386
2019	42.028
2020	41.226
2021	41.026
2022	42.155
2023	42.376