Year	% (modeled ILO estimate)
1991	13.466
1992	13.467
1993	13.633
1994	13.736
1995	13.895
1996	14.121
1997	14.374
1998	14.67
1999	14.982
2000	14.558
2001	14.489
2002	14.263
2003	14.712
2004	15.144
2005	15.543
2006	15.971
2007	15.764
2008	15.662
2009	15.008
2010	15.819
2011	16.524
2012	16.708
2013	16.39
2014	16.279
2015	17.248
2016	18.244
2017	15.754
2018	17.379
2019	19.312
2020	23.334
2021	28.539
2022	28.982
2023	29.35