These businesses were further stratified by employment size (‘3 to 9’ and ‘10 to 19’) and industrial sector (SIC section), together yielding 1,852 records.
Cafodd y busnesau hyn eu haenu ymhellach yn ôl maint cyflogaeth (‘3 i 9’ a ‘10 i 19’) a’r sector diwydiannol (adran DDS), gan gynhyrchu 1,852 o gofnodion gyda’i gilydd.