Year	% (modeled ILO estimate)
1991	61.754
1992	62.046
1993	61.996
1994	61.897
1995	61.79
1996	60.432
1997	62.357
1998	61.435
1999	60.888
2000	59.921
2001	59.035
2002	53.085
2003	52.043
2004	51.308
2005	50.073
2006	50.974
2007	51.259
2008	51.354
2009	50.705
2010	51.051
2011	50.225
2012	50.902
2013	50.658
2014	51.139
2015	50.826
2016	50.551
2017	52.231
2018	52.676
2019	52.984
2020	52.29
2021	48.215
2022	48.894
2023	48.743