Year	% (modeled ILO estimate)
1991	50.394
1992	51.505
1993	51.591
1994	51.371
1995	50.117
1996	48.7
1997	49.294
1998	48.233
1999	47.002
2000	47.24
2001	47.49
2002	47.964
2003	48.279
2004	48.493
2005	48.277
2006	48.192
2007	48.125
2008	47.919
2009	48.125
2010	47.789
2011	47.276
2012	46.944
2013	46.669
2014	46.411
2015	46.275
2016	46.153
2017	46.03
2018	45.924
2019	45.823
2020	44.366
2021	44.064
2022	45.829
2023	46.093