Year	% (modeled ILO estimate)
1991	56.985
1992	56.847
1993	56.642
1994	56.381
1995	56.066
1996	55.959
1997	55.922
1998	55.944
1999	56.01
2000	56.107
2001	56.197
2002	56.293
2003	56.386
2004	56.477
2005	56.584
2006	56.47
2007	56.31
2008	56.179
2009	56.105
2010	55.986
2011	55.922
2012	55.847
2013	55.236
2014	54.595
2015	52.519
2016	50.456
2017	48.43
2018	47.065
2019	45.685
2020	43.474
2021	43.903
2022	51.284
2023	49.129