Year	% (modeled ILO estimate)
1991	25.57
1992	25.673
1993	24.874
1994	24.752
1995	25.45
1996	26.176
1997	27.312
1998	28.1
1999	30.09
2000	32.29
2001	33.417
2002	35.082
2003	36.491
2004	37.954
2005	40.566
2006	42.13
2007	43.359
2008	43.523
2009	41.763
2010	41.256
2011	40.94
2012	39.688
2013	38.784
2014	39.231
2015	40.203
2016	41.334
2017	42.252
2018	43.077
2019	43.805
2020	42.184
2021	43.793
2022	44.835
2023	45.268