Year	% (modeled ILO estimate)
1991	43.126
1992	42.074
1993	41.156
1994	41.505
1995	41.314
1996	40.851
1997	40.715
1998	42.076
1999	42.057
2000	42.98
2001	43.703
2002	41.439
2003	40.498
2004	39.621
2005	40.479
2006	41.153
2007	42.554
2008	42.77
2009	39.914
2010	38.251
2011	39.49
2012	38.021
2013	37.776
2014	38.113
2015	39.023
2016	39.213
2017	39.885
2018	40.872
2019	40.703
2020	39.381
2021	38.917
2022	40.622
2023	40.58