Year	% (modeled ILO estimate)
1991	49.533
1992	49.566
1993	48.949
1994	48.661
1995	48.325
1996	48.304
1997	48.659
1998	48.114
1999	47.355
2000	47.011
2001	46.771
2002	46.016
2003	45.852
2004	46.08
2005	46.29
2006	46.54
2007	46.599
2008	46.538
2009	46.154
2010	46.148
2011	46.13
2012	46.116
2013	46.982
2014	47.548
2015	47.916
2016	48.821
2017	49.708
2018	51.236
2019	52.122
2020	51.781
2021	52.181
2022	52.908
2023	53.505