Year	% (modeled ILO estimate)
1991	56.259
1992	55.009
1993	53.832
1994	53.083
1995	53.001
1996	52.529
1997	51.984
1998	52.033
1999	52.739
2000	52.909
2001	53.014
2002	52.414
2003	51.714
2004	50.768
2005	51.894
2006	52.917
2007	54.028
2008	54.785
2009	54.793
2010	55.232
2011	56.593
2012	56.838
2013	57.194
2014	57.402
2015	57.39
2016	58.487
2017	58.915
2018	59.209
2019	59.976
2020	58.309
2021	58.346
2022	59.375
2023	59.779