Year	% of total labor force
1991	1.5781034522458626
1992	1.6163011080184775
1993	1.4945680172159008
1994	1.4515519281298992
1995	1.5854499648672429
1996	1.518573863791605
1997	1.5260477330345061
1998	1.4949450841342236
1999	1.4088132322044173
2000	1.3308981787787015
2001	1.2828987689567986
2002	1.270703750355881
2003	1.246766627141128
2004	1.22176314768099
2005	1.249840865735722
2006	1.1796531600793938
2007	1.1711939668397806
2008	1.1548635747211242
2009	1.1289103272743843
2010	1.1190681412537289
2011	1.0807249877909089
2012	1.0727036651855864
2013	1.0398232822262248
2014	1.024679100509365
2015	1.0430202064702105
2016	1.0297986014804679
2017	1.0068021718055031
2018	0.9954193904128815
2019	0.9886112334115706
2020	0.9965602894800134