Year	% (modeled ILO estimate)
1991	54.863
1992	54.286
1993	54.717
1994	55.565
1995	55.999
1996	54.813
1997	54.859
1998	55.316
1999	55.503
2000	56.356
2001	54.043
2002	51.973
2003	50.385
2004	50.56
2005	50.228
2006	51.167
2007	49.547
2008	47.605
2009	42.557
2010	40.928
2011	41.854
2012	42.339
2013	42.698
2014	43.831
2015	44.565
2016	45.517
2017	46.189
2018	45.986
2019	46.639
2020	42.218
2021	45.987
2022	46.883
2023	46.76