Table 2.

Results of principal component analysis with the total sample.

	Eigenvalue	% Explained variance	% Cumulative variance
1	0.0016	19.99	19.99
2	0.0012	14.86	34.85
3	0.0009	11.80	46.64
4	0.0007	9.08	55.73
5	0.0005	6.86	62.58
6	0.0005	6.68	69.26
7	0.0004	5.31	74.58
8	0.0002	3.14	77.71
9	0.0002	2.90	80.61
10	0.0002	2.35	82.96