Year	% (modeled ILO estimate)
1991	83.846
1992	83.43
1993	83.164
1994	82.814
1995	82.474
1996	82.143
1997	81.854
1998	81.544
1999	80.891
2000	80.01
2001	79.235
2002	78.347
2003	77.254
2004	76.122
2005	74.942
2006	73.758
2007	72.631
2008	71.639
2009	70.605
2010	69.652
2011	69.099
2012	68.379
2013	67.554
2014	66.767
2015	66.063
2016	61.6
2017	56.99
2018	55.102
2019	51.584
2020	49.1
2021	44.032
2022	45.146
2023	45.529
