Year	% (modeled ILO estimate)
1991	53.258
1992	51.815
1993	51.225
1994	50.281
1995	48.948
1996	46.795
1997	49.478
1998	47.06
1999	49.274
2000	51.23
2001	52.971
2002	51.11
2003	51.053
2004	51.072
2005	51.052
2006	52.506
2007	52.872
2008	53.144
2009	53.025
2010	52.912
2011	52.811
2012	52.758
2013	52.687
2014	54
2015	53.817
2016	53.176
2017	53.029
2018	53.213
2019	53.713
2020	50.976
2021	53.089
2022	52.921
2023	53.782