Year	% (modeled ILO estimate)
1991	31.543
1992	30.025
1993	24.325
1994	28.777
1995	28.68
1996	28.763
1997	26.628
1998	27.295
1999	27.728
2000	24.861
2001	25.052
2002	25.226
2003	23.842
2004	20.576
2005	20.503
2006	20.794
2007	20.853
2008	21.459
2009	22.149
2010	23.869
2011	25.392
2012	26.19
2013	26.984
2014	26.566
2015	27.354
2016	27.907
2017	28.804
2018	29.346
2019	28.594
2020	26.196
2021	27.934
2022	30.346
2023	30.926