Year	% (modeled ILO estimate)
1991	28.366
1992	29.154
1993	29.454
1994	28.857
1995	29.177
1996	30.078
1997	30.448
1998	30.782
1999	31.232
2000	32.73
2001	34.072
2002	34.627
2003	34.749
2004	34.917
2005	35.033
2006	36.396
2007	37.705
2008	38.417
2009	38.804
2010	39.217
2011	39.665
2012	40.158
2013	40.635
2014	40.725
2015	42.903
2016	43.626
2017	43.912
2018	43.05
2019	42.154
2020	39.743
2021	40.985
2022	43.149
2023	43.812