Table 1.

Detailed data of PCA.

Number of prin. comp.	1	2	3	4	5	6	7	8	9	10
variance (%)	32.81	44.53	52.35	57.71	61.97	65.02	67.78	70.18	72.46	74.56
Number of prin. comp.	11	12	13	14	15	16	17	18	19	20
variance (%)	76.41	78.2	79.7	81.12	82.27	83.38	84.35	85.29	86.05	86.8
Number of prin. comp.	21	22	23	24	25	26	27	28	29	30
variance (%)	87.53	88.2	88.8	89.35	89.86	90.35	90.84	91.3	91.73	92.15
Number of prin. comp.	31	32	33	34	35	36	37	38	39	40
variance (%)	92.54	92.9	93.24	93.58	93.9	94.21	94.5	94.76	95.02	95.27