Table 1.

Membranous clusters tests

Classes (V)	P (New)	All clusters, number (%)	Membranous number (%)	Ratio*
Occupied	0.00	756 (5.7)	13 (1.2)	0.2
1	0.46	1,123 (8.4)	45 (4.3)	0.5
Empty	0.62	9,651 (72.3)	639 (61.0)	0.8
2–18	0.63	1,111 (8.3)	91 (8.7)	1.0
Add-0.0	0.76	405 (3.0)	104 (9.9)	3.3
>19	0.82	308 (2.3)	156 (14.9)	6.5
Total		13,354 (100)	1,048 (100)

*Ratio between membranous clusters and all clusters.