Year	% (modeled ILO estimate)
1991	43.272
1992	43.044
1993	43.065
1994	43.153
1995	43.542
1996	43.807
1997	44.144
1998	44.555
1999	44.894
2000	40.938
2001	40.82
2002	40.788
2003	40.728
2004	40.72
2005	40.711
2006	44.674
2007	40.32
2008	41.32
2009	42.31
2010	42.165
2011	42.011
2012	34.396
2013	37.083
2014	39.993
2015	31.633
2016	34.069
2017	35.304
2018	41.171
2019	38.647
2020	35.394
2021	35.656
2022	36.381
2023	36.861