Year	% (modeled ILO estimate)
1991	61.385
1992	61.78
1993	61.972
1994	62.02
1995	62.199
1996	62.319
1997	62.583
1998	62.574
1999	62.276
2000	62.247
2001	62.079
2002	62.038
2003	61.967
2004	61.877
2005	61.709
2006	61.782
2007	61.873
2008	61.755
2009	61.818
2010	61.855
2011	61.834
2012	61.787
2013	61.747
2014	61.716
2015	61.795
2016	61.652
2017	61.858
2018	62.076
2019	62.077
2020	59.64
2021	60.089
2022	62.202
2023	62.488