Year	% (modeled ILO estimate)
1991	81.305
1992	81.043
1993	80.769
1994	80.486
1995	80.189
1996	79.748
1997	79.248
1998	78.706
1999	78.216
2000	77.559
2001	76.776
2002	75.966
2003	75.222
2004	74.119
2005	72.772
2006	72.532
2007	71.878
2008	71.501
2009	71.146
2010	70.24
2011	70.281
2012	64.269
2013	69.722
2014	68.582
2015	68.73
2016	68.291
2017	67.856
2018	67.423
2019	69.656
2020	68.949
2021	70.014
2022	71.005
2023	70.587