Year % of total labor force (national estimate) 1994 7.079006531285863 2000 4.118151593783107 2005 4.814564905925108 2010 3.381250282872005 2012 3.855015829536684 2018 6.475021543663351 2019 6.151898324691718 2020 6.650482028835821 2021 6.201458698895689 2022 4.707451860346626