Table 3. Eigenvalue, variance, and cumulative variance of the 10 principle components.

	Eigenvalue	Variance	Cumulative Variance
PC1	7.3	73.0	73.0
PC2	1.1	10.8	83.8
PC3	0.8	6.8	90.6
PC4	0.3	3.1	93.7
PC5	0.2	2.1	95.8
PC6	0.1	1.1	97.3
PC7	0.1	0.1	98.2
PC8	0.1	0.9	99.1
PC9	0.1	0.6	99.8
PC10	0.0	0.2	100.0