renewing DNI con motivo trabajador - how many months of pay receipts to bring to migraciones

Dear Expat community,
Has anyone lately renewed their worker DNI (con motivo trabajador). I am collecting my documentations here for the 1st renewal (i.e. not applying for permanent residency) and to prove the "continuidad laboral" was just wondering how many months of payslips (monthly pay receipts - how are they called, recibio del sueldo??) did you have to present? all 12 or is the three latest OK.

Thank you!!!