Table 3. Eigenvalues for each Principal Component axis, the variance explained by each axis, and the cumulative amount of variance explained by multiple axes (e.g., first four axes account for 74.8% of total variance).

	PCA Axis	Eigen-value	Percent Variance	Cumulative % Variance
	1	3.66	40.6	40.6
	2	1.16	12.9	53.5
	3	1.02	11.3	64.9
	4	0.89	9.9	74.8
	5	0.67	7.5	82.2
	6	0.52	5.8	88.0
	7	0.48	5.4	93.4
	8	0.32	3.6	97.0
	9	0.27	3.0	100.0