Year % of total labor force (national estimate) 1994 6.702105997617453 2000 3.259094813082258 2005 4.219109119687519 2010 2.913611836274123 2012 3.261048870940972 2018 7.183276708422731 2019 6.2793673836826525 2020 7.882848344965134 2021 6.3426695995216065 2022 4.867967439342419 2023 4.171243813721821