Reporting the results of carrying out experimental seasonal adjustment of Welsh road accident and casualty data, with the aim of possibly publishing seasonally adjusted quarterly data in the future.
Adreddiad ar y canlyniadau cymhwysiad tymhorol arbrofol o ddata anafiadau a damweiniau ffyrdd Cymraeg, gyda’r nod posib o gyhoeddi data chwarterol cymhwysiad tymhorol yn y dyfodol.