Year	% of total labor force
1991	16.9280581173082
1992	17.01197833146604
1993	17.040456359603503
1994	17.06136926287065
1995	17.14471687474219
1996	16.97889997136294
1997	16.81418371137303
1998	16.686638760495047
1999	16.594294524606823
2000	16.512335190974582
2001	16.618529644193405
2002	16.764359577651234
2003	16.91838788485279
2004	17.0611489521127
2005	17.189795322582512
2006	16.98510749818789
2007	16.795099847266734
2008	16.63934881586416
2009	16.547560024136487
2010	16.55615635740846
2011	16.8750523207291
2012	17.278983202065188
2013	18.23056252646206
2014	19.218424010924327
2015	20.244790587672597
2016	21.307866399788736
2017	22.418111741921013
2018	21.756158170305042
2019	20.99141212298094
2020	19.793486147683005
2021	17.927683786821973
2022	6.847929314745908
2023	6.537577793942753