Year	% (modeled ILO estimate)
1991	42.618
1992	42.54
1993	42.477
1994	41.701
1995	41.82
1996	41.797
1997	41.312
1998	41.398
1999	41.578
2000	41.144
2001	41.887
2002	42.89
2003	42.718
2004	42.73
2005	42.59
2006	41.914
2007	42.933
2008	43.61
2009	44.572
2010	44.567
2011	44.316
2012	44.365
2013	44.49
2014	44.235
2015	44.325
2016	43.862
2017	43.136
2018	42.849
2019	42.444
2020	44.364
2021	43.305
2022	43.117
2023	42.988