Year	% (modeled ILO estimate)
1991	45.445
1992	46.602
1993	47.183
1994	47.604
1995	47.645
1996	48.285
1997	48.572
1998	48.326
1999	47.257
2000	47.008
2001	46.208
2002	45.411
2003	44.7
2004	44.001
2005	44.54
2006	44.869
2007	44.686
2008	44.447
2009	43.545
2010	43.034
2011	42.632
2012	41.507
2013	42.478
2014	42.966
2015	42.925
2016	44.806
2017	44.599
2018	47.399
2019	49.09
2020	48.557
2021	48.878
2022	48.707
2023	49.841