Parameter value

t-statistics

P-value

α 0

−1310.89

−3.13071

0.025937

α 1

−356.548

−3.61718

0.015265

α 2

−16.5431

−4.14201

0.008979

α 3

416.0629

2.360033

0.064748

α 4

30.34442

3.806339

0.012547

α 5

28.30363

3.166967

0.0249

α 6

0.262391

4.19722

0.008512

α 7

−68.8581

−2.37225

0.063775

α 8

−0.10286

−2.5849

0.049139