Year	% (modeled ILO estimate)
1991	62.115
1992	62.088
1993	61.928
1994	62.052
1995	62.064
1996	62.448
1997	62.354
1998	62.12
1999	61.76
2000	61.338
2001	61.129
2002	61.615
2003	62.141
2004	62.665
2005	63.036
2006	63.627
2007	64.149
2008	60.656
2009	57.032
2010	53.333
2011	51.382
2012	49.437
2013	47.481
2014	45.522
2015	45.323
2016	45.106
2017	44.808
2018	44.465
2019	44.088
2020	43.336
2021	43.301
2022	43.434
2023	43.536