Year	% (modeled ILO estimate)
1991	34.662
1992	36.112
1993	39.278
1994	43.938
1995	45.393
1996	46.041
1997	44.372
1998	42.112
1999	43.242
2000	45.142
2001	44.098
2002	39.939
2003	40.151
2004	41.156
2005	43.66
2006	43.468
2007	43.634
2008	44.193
2009	44.089
2010	44.024
2011	42.675
2012	43.725
2013	44.293
2014	44.379
2015	44.563
2016	44.96
2017	45.657
2018	45.367
2019	44.814
2020	41.216
2021	42.042
2022	44.293
2023	44.552