Year	% (modeled ILO estimate)
1991	61.102
1992	60.886
1993	60.628
1994	60.18
1995	59.8
1996	59.41
1997	59.002
1998	58.816
1999	58.353
2000	58.012
2001	57.674
2002	57.322
2003	56.96
2004	56.581
2005	56.133
2006	55.541
2007	55.024
2008	54.474
2009	53.937
2010	53.296
2011	52.685
2012	52.068
2013	51.451
2014	50.874
2015	50.341
2016	49.84
2017	49.351
2018	48.917
2019	48.548
2020	47.985
2021	47.434
2022	48.444
2023	48.686