Year	% (modeled ILO estimate)
1991	48.526
1992	47.83
1993	47.02
1994	46.285
1995	45.489
1996	44.683
1997	44.165
1998	45.344
1999	44.939
2000	44.248
2001	44.48
2002	44.146
2003	43.752
2004	43.24
2005	42.877
2006	42.481
2007	42.002
2008	41.75
2009	40.773
2010	40.062
2011	41.486
2012	41.718
2013	42.349
2014	42.293
2015	41.467
2016	41.72
2017	41.862
2018	42.835
2019	45.629
2020	42.728
2021	43.01
2022	44.435
2023	44.263