Year	% (modeled ILO estimate)
1991	52.778
1992	51.308
1993	50.945
1994	53.124
1995	55.557
1996	56.294
1997	55.443
1998	53.622
1999	51.792
2000	52.363
2001	52.874
2002	53.664
2003	53.337
2004	52.705
2005	53.314
2006	55.241
2007	55.831
2008	53.706
2009	48.788
2010	47.835
2011	47.826
2012	47.008
2013	47.405
2014	49.341
2015	51.007
2016	51.842
2017	53.057
2018	56.056
2019	56.133
2020	54.135
2021	57.878
2022	61.3
2023	61.22