Year	% (modeled ILO estimate)
1991	63.854
1992	64.017
1993	61.934
1994	61.965
1995	60.687
1996	58.173
1997	56.416
1998	56.89
1999	58.906
2000	56.273
2001	55.311
2002	55.585
2003	54.665
2004	51.527
2005	52.186
2006	52.957
2007	54.424
2008	55.163
2009	53.179
2010	53.959
2011	55.064
2012	54.488
2013	54.014
2014	51.861
2015	51.57
2016	50.968
2017	49.591
2018	51.712
2019	52.392
2020	50.984
2021	51.919
2022	52.968
2023	55.664