Year	% (modeled ILO estimate)
1991	32.262
1992	32.84
1993	34.61
1994	34.71
1995	31.95
1996	30.18
1997	29.19
1998	35.6
1999	33.84
2000	33.023
2001	32.216
2002	31.42
2003	33.91
2004	32.05
2005	32.612
2006	33.18
2007	30.87
2008	30.514
2009	30.16
2010	29.809
2011	29.427
2012	30.4
2013	30.382
2014	29.173
2015	28.427
2016	29.345
2017	29.482
2018	30.036
2019	30.273
2020	28.056
2021	29.727
2022	30.709
2023	30.35