Table 2.

Principal Component Analysis (PCA): eigenvalue, percentage of explained variances of a single component, and cumulative variance percent.

Component	Eigenvalue	Percentage of Explained Variance	Cumulative Variance Percent
Item 1	4.88	34.87	34.87
Item 2	3.06	21.88	56.75
Item 3	1.12	8.03	64.78
Item 4	0.80	5.72	70.50
Item 5	0.66	4.73	75.24
Item 6	0.63	4.51	79.75
Item 7	0.52	3.75	83.49
Item 8	0.45	3.24	86.73
Item 9	0.40	2.86	89.59
Item 10	0.36	2.61	92.20
Item 11	0.34	2.46	94.66
Item 12	0.30	2.11	96.77
Item 13	0.26	1.87	98.64
Item 14	0.19	1.36	100.00