Year	% (modeled ILO estimate)
1991	34.54
1992	35.22
1993	35.94
1994	35.83
1995	37.28
1996	35.99
1997	36.7
1998	37.43
1999	36.47
2000	36.29
2001	34.64
2002	32.68
2003	32.63
2004	32.47
2005	34.32
2006	34.98
2007	35.09
2008	34.13
2009	33.38
2010	33.28
2011	33.26
2012	33.78
2013	33.05
2014	31.99
2015	31.65
2016	31.25
2017	30.83
2018	30.9
2019	32.4
2020	28.67
2021	32.41
2022	32.45
2023	33.57