Year	% of total labor force
1991	2.972767075375897
1992	2.4598997898323116
1993	2.387065239425441
1994	2.1704434794813507
1995	2.135834150027293
1996	1.799635912005246
1997	2.0498433707330386
1998	2.035225172422226
1999	1.9441212289956762
2000	1.7311203280377256
2001	2.0692765339916717
2002	1.5097262742741682
2003	1.7208179391828524
2004	1.505469575097798
2005	1.4508964388238739
2006	1.3030197245203081
2007	1.3352067310852562
2008	1.2866018996402133
2009	1.2399652894502904
2010	1.1946460253616205
2011	1.149768444496943
2012	1.1113933395812003
2013	1.074739003766547
2014	1.0398576550409988
2015	1.0065772510616164
2016	0.9740682225727573
2017	0.9423590387937805
2018	0.9122149795991307
2019	0.8832777182928402
2020	0.8522435493540067