Year	% (modeled ILO estimate)
1991	66.055
1992	66.126
1993	65.901
1994	65.899
1995	65.811
1996	66.049
1997	66.365
1998	66.688
1999	66.955
2000	67.123
2001	67.484
2002	67.64
2003	67.662
2004	67.664
2005	67.706
2006	66.212
2007	64.677
2008	63.087
2009	61.446
2010	59.773
2011	58.072
2012	56.957
2013	55.835
2014	54.71
2015	53.584
2016	52.458
2017	51.334
2018	51.932
2019	52.462
2020	52.935
2021	52.855
2022	53.409
2023	53.582