Year	% (modeled ILO estimate)
1991	69.831
1992	69.424
1993	68.954
1994	68.142
1995	67.461
1996	66.765
1997	66.05
1998	65.735
1999	64.903
2000	64.268
2001	63.618
2002	62.924
2003	62.194
2004	61.417
2005	60.553
2006	59.499
2007	58.614
2008	57.705
2009	56.847
2010	55.834
2011	54.886
2012	53.931
2013	52.967
2014	52.061
2015	51.194
2016	50.359
2017	49.548
2018	48.836
2019	48.24
2020	47.422
2021	47.012
2022	48.25
2023	48.198