Year	% (modeled ILO estimate)
1991	76.944
1992	76.728
1993	77.247
1994	77.723
1995	78.322
1996	78.418
1997	78.495
1998	78.307
1999	77.654
2000	76.885
2001	76.167
2002	75.489
2003	74.775
2004	74.383
2005	73.942
2006	73.626
2007	73.004
2008	72.576
2009	72.053
2010	71.698
2011	70.81
2012	70.421
2013	72.705
2014	72.986
2015	73.006
2016	72.995
2017	71.634
2018	71.551
2019	71.457
2020	70.604
2021	70.015
2022	70.764
2023	70.814