Year	% (modeled ILO estimate)
1991	76.531
1992	75.649
1993	74.743
1994	73.819
1995	72.885
1996	71.939
1997	70.991
1998	70.028
1999	69.05
2000	68.067
2001	67.28
2002	66.488
2003	65.684
2004	64.858
2005	64.011
2006	63.139
2007	62.239
2008	61.328
2009	60.411
2010	59.483
2011	58.552
2012	57.768
2013	56.99
2014	56.25
2015	55.548
2016	54.866
2017	54.157
2018	53.425
2019	52.755
2020	49.814
2021	51.618
2022	51.3
2023	51.284