每組數據唔同,非農嚟講就係咁:The Current Employment Statistics (CES) first preliminary estimates of employment, hours, and earnings are published each month approximately 3 weeks after the reference period. Estimates are then revised twice, before being held constant until the annual benchmarking process. Second preliminary estimates for a given month are published the month following the initial release, and final sample-based estimates are published 2 months after the initial release.
https://www.bls.gov/web/empsit/cesnaicsrev.htm
拉落啲會見到3次estimate數據差異可以好大,例如2021年11-12月。一開始以為就業市場唔太強,點知後來發現咁勁,所以聯儲局喺加息上先咁遲緩。