Imputation was also carried out for businesses who selected that they had goods and services sales/purchases but were unable to apportion these total values between goods and services.
Cafodd priodoli ei gynnal i fusnesau hefyd a nododd fod ganddynt werthiannau/pryniannau nwyddau a gwasanaethau ond nad oeddent yn gallu dosrannu'r cyfanswm gwerthoedd hyn rhwng nwyddau a gwasanaethau.