(a)

Axis

Eigen value

Variance (%)

Cumulative variance (%)

Dim.1

176.54

48.24

48.24

Dim.2

46.3

12.65

60.89

Dim.3

33.61

9.18

70.07

Dim.4

11.2

3.06

73.13

Dim.5

8.2

2.24

75.37

Dim.6

5.85

1.6

76.97

Dim.7

5.19

1.42

78.38

Dim.8

4.49

1.23

79.61

Dim.9

4.16

1.14

80.75

Dim.10

3.89

1.06

81.81

Dim.11

3.39

0.93

82.74

(b)

Axis

Eigen value

Variance (%)

Cumulative variance (%)

Dim.1

197.93

54.23

54.23

Dim.2

60.67

16.62

70.85

Dim.3

53.36

14.62

85.47

Dim.4

8.18

2.24

87.71

Dim.5

7.92

2.17

89.88

Dim.6

5.29

1.45

91.33

Dim.7

3.96

1.08

92.41

Dim.8

3.06

0.84

93.25

Dim.9

2.77

0.76

94.01

Dim.10

2.37

0.65

94.66

Dim.11

1.74

0.48

95.13