Year	% (modeled ILO estimate)
1991	70.028
1992	69.52
1993	69.017
1994	68.614
1995	67.762
1996	67.094
1997	66.251
1998	66.649
1999	66.799
2000	66.889
2001	67.223
2002	67.47
2003	67.689
2004	68.059
2005	67.91
2006	67.753
2007	67.602
2008	67.409
2009	67.555
2010	67.855
2011	68.185
2012	68.591
2013	68.826
2014	69.074
2015	68.611
2016	68.227
2017	67.733
2018	67.132
2019	66.346
2020	65.138
2021	65.136
2022	66.189
2023	66.241