Year	% (modeled ILO estimate)
1991	32.399
1992	32.795
1993	33.226
1994	33.694
1995	33.45
1996	32.782
1997	32.08
1998	31.772
1999	32.012
2000	28.939
2001	28.13
2002	26.173
2003	30.749
2004	25.274
2005	25.978
2006	23.071
2007	24.285
2008	27.359
2009	28.705
2010	28.572
2011	29.483
2012	29.567
2013	27.432
2014	28.405
2015	31.69
2016	27.601
2017	30.122
2018	32.545
2019	29.515
2020	29.351
2021	29.46
2022	28.209
2023	28.104