Year	% (modeled ILO estimate)
1991	53.382
1992	56.421
1993	54.489
1994	54.715
1995	54.374
1996	54.277
1997	55.862
1998	59.368
1999	62.961
2000	67.192
2001	69.604
2002	69.746
2003	68.752
2004	66.341
2005	59.5
2006	59.957
2007	62.499
2008	64.11
2009	63.642
2010	61.97
2011	62.935
2012	62.817
2013	61.299
2014	59.088
2015	61.936
2016	62.369
2017	63.847
2018	65.386
2019	66.192
2020	63.786
2021	64.344
2022	64.939
2023	65.915