Year	% (modeled ILO estimate)
1991	33.077
1992	32.64
1993	32.23
1994	31.711
1995	31.036
1996	30.586
1997	30.055
1998	29.466
1999	28.849
2000	28.295
2001	27.921
2002	27.637
2003	27.43
2004	27.237
2005	27.015
2006	26.791
2007	26.596
2008	26.437
2009	26.289
2010	26.147
2011	26.018
2012	25.805
2013	25.591
2014	25.441
2015	25.338
2016	25.02
2017	24.816
2018	24.666
2019	24.478
2020	24.019
2021	23.943
2022	24.513
2023	24.502