Year	% (modeled ILO estimate)
1991	23.233
1992	23.778
1993	24.212
1994	24.123
1995	24.709
1996	24.749
1997	25.286
1998	25.434
1999	25.703
2000	25.71
2001	25.714
2002	26.085
2003	26.633
2004	26.884
2005	26.871
2006	26.936
2007	26.753
2008	26.44
2009	25.385
2010	24.255
2011	23.833
2012	23.628
2013	23.572
2014	23.204
2015	22.801
2016	22.752
2017	22.541
2018	22.372
2019	21.868
2020	18.806
2021	19.626
2022	21.445
2023	21.974