Table 3.

Correlation matrix.

	1	2	3	4	5	6	7	8	9	10	11	12
ABU	1
CCD	0.516	1
IC	0.487	0.685	1
PE	0.344	0.343	0.303	1
QES	0.473	0.595	0.644	0.375	1
PU	0.535	0.758	0.566	0.322	0.513	1
PEU	0.611	0.609	0.519	0.276	0.496	0.685	1
SPD	0.497	0.741	0.529	0.358	0.483	0.744	0.594	1
ATU	0.553	0.697	0.545	0.326	0.521	0.733	0.652	0.734	1
BIU	0.494	0.753	0.531	0.361	0.473	0.762	0.605	0.827	0.755	1
AU	0.371	0.403	0.387	0.348	0.445	0.361	0.373	0.361	0.425	0.374	1
AP	0.445	0.653	0.549	0.337	0.601	0.607	0.515	0.594	0.606	0.619	0.417	1