Year	% of total labor force
1991	0.9559467856289333
1992	1.0320151747511295
1993	1.0010160312717409
1994	0.9714509980687553
1995	1.5781038562432435
1996	1.3789033306031047
1997	1.3544470560190272
1998	1.328054170444243
1999	1.2894174927534736
2000	1.2282577900203235
2001	0.9374091884848655
2002	0.9153080698135976
2003	0.8881198428915998
2004	0.853997705592831
2005	0.8195484151641043
2007	0.7550489177317575
2008	0.7305967209601502
2009	0.7004154047029392
2010	0.6710542429920967
2011	0.6512745170935138
2012	0.6363124421353372
2013	0.6247146485693774
2014	0.61283271709599
2015	0.6005843685906387
2016	0.5877319765867172
2017	0.5741758662399902
2018	0.5604072292532574
2019	0
2020	0.5386963548213324