Eoghan Murphy (Dublin Bay South, Fine Gael) | Oireachtas source

Because it came back with an average household usage figure of 127 cu. m per household per year. In the same data it is indicated that it covers roughly in the region of four occupants. It is actually a little higher – 133 cu. m per household per year. The figure is 55 cu. m for one occupant, 93 cu. m for two occupants, 114 cu. m for three and 133 cu. m for four. That is what we are basing it on. The figure the CER provided, 127 cu. m., covers four occupants. This plus the figure of 1.7 actually covers eight occupants when one uses the figures provided for us by the CER.