Year	% (modeled ILO estimate)
1991	26.629
1992	26.625
1993	26.619
1994	26.614
1995	26.61
1996	26.605
1997	26.6
1998	26.593
1999	26.586
2000	26.58
2001	26.576
2002	26.573
2003	26.57
2004	26.6
2005	26.535
2006	26.46
2007	26.365
2008	26.258
2009	26.225
2010	26.251
2011	26.275
2012	26.297
2013	26.317
2014	26.335
2015	26.35
2016	26.364
2017	26.213
2018	26.036
2019	25.856
2020	25.611
2021	25.36
2022	24.888
2023	24.994