Year	% (modeled ILO estimate)
1991	42.753
1992	42.874
1993	42.22
1994	42.141
1995	42.628
1996	43.531
1997	44.257
1998	44.804
1999	45.791
2000	46.154
2001	47.571
2002	49.266
2003	49.813
2004	49.674
2005	49.148
2006	48.698
2007	48.157
2008	48.734
2009	49.181
2010	48.907
2011	47.481
2012	47.308
2013	47.022
2014	47.13
2015	47.332
2016	47.701
2017	47.966
2018	48.187
2019	48.353
2020	47.422
2021	47.601
2022	47.658
2023	47.698