Year	% (modeled ILO estimate)
1991	48.387
1992	47.625
1993	46.863
1994	46.104
1995	45.346
1996	44.59
1997	44.269
1998	43.949
1999	43.629
2000	43.31
2001	42.991
2002	42.673
2003	42.355
2004	42.039
2005	41.722
2006	41.407
2007	41.092
2008	40.778
2009	40.464
2010	40.152
2011	39.84
2012	39.273
2013	38.646
2014	37.973
2015	37.271
2016	36.633
2017	35.964
2018	35.276
2019	34.579
2020	34.251
2021	34.226
2022	35.083
2023	34.472