R2

x1

x2

x3

x4

x5

x6

x7

Y

0.981**

0.985**

0.940**

0.973**

0.998**

0.959**

0.975**

R2

x8

x9

x10

x11

x12

x13

x14

Y

0.971**

0.973**

0.835**

0.982**

0.885**

0.991**

0.961**

R2

x15

x16

x17

x18

x19

Y

0.914**

0.771**

0.954**

0.976**

0.913**