Year	% (modeled ILO estimate)
1991	46.362
1992	46.051
1993	45.757
1994	45.515
1995	45.231
1996	44.986
1997	44.795
1998	44.592
1999	44.456
2000	44.267
2001	44.21
2002	44.126
2003	44.077
2004	44.034
2005	43.994
2006	43.916
2007	43.976
2008	43.948
2009	43.87
2010	43.77
2011	43.999
2012	44.101
2013	44.224
2014	44.24
2015	44.294
2016	44.32
2017	44.236
2018	44.106
2019	43.888
2020	42.983
2021	42.852
2022	43.908
2023	43.939