The number of contacts with children up to age 4 by health visitors and the wider health team have been on a broadly downward trend since a peak between the years 2014-15 and 2015-16.
Mae nifer y cysylltiadau â phlant hyd at bedair oed gan ymwelwyr iechyd a'r tîm iechyd ehangach wedi bod ar i lawr ar y cyfan ers cyrraedd uchafswm rhwng y blynyddoedd 2014-15 a 2015-16.