Year	% (modeled ILO estimate)
1991	41.909
1992	41.815
1993	41.734
1994	41.617
1995	41.604
1996	41.57
1997	41.511
1998	41.465
1999	41.426
2000	41.401
2001	41.278
2002	41.171
2003	41.169
2004	41.203
2005	41.205
2006	41.148
2007	41.15
2008	41.414
2009	41.719
2010	41.962
2011	42.26
2012	42.61
2013	42.711
2014	42.841
2015	43.003
2016	43.137
2017	43.241
2018	43.321
2019	43.391
2020	42.321
2021	43.001
2022	43.238
2023	43.156