Year	% (modeled ILO estimate)
1991	45.57
1992	44.134
1993	43.261
1994	42.392
1995	41.758
1996	41.796
1997	41.783
1998	41.971
1999	42.42
2000	42.918
2001	43.654
2002	44.269
2003	44.872
2004	45.77
2005	45.314
2006	45.752
2007	45.786
2008	45.8
2009	44.723
2010	44.17
2011	44.115
2012	43.853
2013	42.862
2014	42.839
2015	43.143
2016	43.713
2017	44.226
2018	44.623
2019	44.926
2020	44.066
2021	43.956
2022	45.138
2023	45.942