Year	% (modeled ILO estimate)
1991	30.737
1992	31.73
1993	32.493
1994	32.614
1995	32.881
1996	33.247
1997	34.027
1998	34.544
1999	34.983
2000	35.234
2001	33.76
2002	35.683
2003	34.978
2004	34.979
2005	35.677
2006	36.742
2007	36.984
2008	38.534
2009	35.653
2010	38.545
2011	39.823
2012	40.856
2013	40.153
2014	40.786
2015	42.737
2016	43.415
2017	44.878
2018	45.54
2019	47.228
2020	42.983
2021	44.554
2022	45.968
2023	47.503