Year	% (modeled ILO estimate)
1991	46.745
1992	46.083
1993	45.357
1994	44.624
1995	44.02
1996	43.502
1997	42.998
1998	42.57
1999	42.124
2000	41.764
2001	41.599
2002	41.422
2003	41.22
2004	41.081
2005	41.039
2006	40.921
2007	40.754
2008	40.712
2009	40.68
2010	40.578
2011	41.029
2012	41.405
2013	41.591
2014	41.734
2015	41.711
2016	41.444
2017	41.117
2018	40.68
2019	40.184
2020	39.485
2021	39.217
2022	40.418
2023	40.828