变量

x1

x2

x3

x4

x5

x6

x7

x8

特征值

2.301

1.053

0.921

0.525

0.414

0.372

0.343

0.219

方差贡献率%

66.160

13.850

10.600

3.450

2.143

1.732

1.475

0.598

累积贡献率%

66.160

80.000

90.600

94.050

96.196

97.928

99.402

100.000