Looking at this chart: https://www.bls.gov/opub/ted/2018/u-3-unemployment-rate-was-4-1-percent-in-december-2017-u-6-was-8-1-percent.htm?view_full https://www.bl

Looking at this chart: https://www.bls.gov/opub/ted/2018/u-3-unemployment-rate-was-4-1-percent-in-december-2017-u-6-was-8-1-percent.htm?view_full https://www.bls.gov/opub/ted/2018/u-3-unemployment-rate-was-... Seems like a constant decline so it's not sudden and very explainable.