Year	% (modeled ILO estimate)
1991	58.263
1992	57.331
1993	57.393
1994	56.199
1995	56.486
1996	55.052
1997	55.009
1998	53.898
1999	53.285
2000	54.794
2001	53.679
2002	53.306
2003	53.597
2004	51.599
2005	51.724
2006	55.615
2007	57.232
2008	58.339
2009	58.857
2010	61.488
2011	62.664
2012	63.371
2013	64.017
2014	68.266
2015	68.96
2016	68.798
2017	67.223
2018	66.219
2019	68.29
2020	68.837
2021	71.937
2022	71.87
2023	71.608