Year	% (modeled ILO estimate)
1991	47.769
1992	45.739
1993	44.197
1994	45.064
1995	44.905
1996	43.202
1997	41.624
1998	41.433
1999	39.331
2000	37.6
2001	37.693
2002	38.065
2003	38.888
2004	40.179
2005	40.053
2006	42.049
2007	44.016
2008	45.55
2009	44.374
2010	43.2
2011	42.447
2012	42.66
2013	42.823
2014	43.572
2015	44.486
2016	44.346
2017	46.574
2018	46.929
2019	48.33
2020	46.845
2021	46.567
2022	48.543
2023	48.026