Months

a

b

c

R2

n

1

0.1032

0.3620

0.1077

0.934

79

2

0.1546

0.4467

0.5207

0.885

77

3

0.2768

0.6914

0.8811

0.773

77

4

−0.1219

0.2011

−0.1853

0.747

76

5

0.1443

0.3643

−0.0312

0.681

74

6

0.0902

0.2500

−0.8014

0.662

71

7

0.1583

0.3208

−0.5168

0.735

75

8

0.1615

0.3480

−0.2879

0.752

72

9

0.0976

0.1832

−1.5026

0.715

70

10

0.1677

0.2830

−1.0554

0.796

73

11

0.1078

0.2979

−0.1362

0.921

75

12

0.0633

0.3208

0.1290

0.942

74