Year	% (modeled ILO estimate)
1991	32.592
1992	32.642
1993	32.677
1994	32.587
1995	32.351
1996	31.986
1997	31.518
1998	31.047
1999	30.652
2000	30.308
2001	29.997
2002	29.693
2003	29.46
2004	29.312
2005	29.233
2006	29.075
2007	28.942
2008	28.871
2009	28.842
2010	28.811
2011	28.778
2012	28.636
2013	28.478
2014	28.322
2015	28.149
2016	28.067
2017	27.907
2018	27.744
2019	27.594
2020	25.397
2021	25.99
2022	27.65
2023	27.97