Year	% (modeled ILO estimate)
1991	45.887
1992	46.572
1993	46.763
1994	47.221
1995	47.343
1996	47.685
1997	47.781
1998	47.906
1999	46.868
2000	46.945
2001	46.495
2002	45.283
2003	44.506
2004	44.506
2005	45.122
2006	45.521
2007	44.806
2008	44.914
2009	44.967
2010	43.992
2011	43.734
2012	42.055
2013	43.53
2014	43.655
2015	43.144
2016	44.998
2017	45.294
2018	48.231
2019	50.306
2020	49.246
2021	49.821
2022	49.846
2023	51.157