Year	% (modeled ILO estimate)
1991	70.294
1992	69.522
1993	71.236
1994	71.586
1995	73.708
1996	74.871
1997	74.996
1998	77.48
1999	77.037
2000	76.488
2001	76.089
2002	74.58
2003	73.524
2004	74.041
2005	73.994
2006	75.754
2007	75.969
2008	75.692
2009	69.937
2010	70.122
2011	70.383
2012	69.947
2013	68.313
2014	70.723
2015	72.251
2016	72.178
2017	74.274
2018	72.777
2019	72.74
2020	65.443
2021	68.054
2022	71.417
2023	71.999