Figure 14: The various sub-types of Type A bars, their frequencies and their average areas.

Type	Number	% of all Type A	Average Area
A.1	14	11%	26m²
A.1.H	11	9%	22m²
A.2	26	20%	44m²
A.2.H	8	6%	40m²
A.3	23	18%	57m²
A.4	46	36%	126m²