Year	% (modeled ILO estimate)
1991	27.738
1992	27.717
1993	27.66
1994	27.644
1995	27.671
1996	27.721
1997	27.71
1998	27.613
1999	27.636
2000	27.557
2001	27.512
2002	27.534
2003	27.494
2004	27.459
2005	27.423
2006	30.424
2007	33.413
2008	34.468
2009	33.626
2010	33.468
2011	33.717
2012	34.691
2013	35.471
2014	37.863
2015	39.462
2016	39.519
2017	39.499
2018	40.916
2019	42.187
2020	37.97
2021	40.236
2022	41.943
2023	42.481