What does the recruitment information mean from last year to recruitment year?

Refers to the statistical deadline from a certain period of last year to a certain period of this year. Whether the last year to the recruitment year in the recruitment information is mid-year and last year is a relative concept, and it is uncertain whether it is that year or last year. Last year was different from last year. If last year is taken as a reference, then last year was last year, that is, the year before last.