step_ahead,prediction
1,16.59699581464465
2,16.61722011362525
3,16.447357072903415
4,16.39044352231645
5,17.849643796222313
6,18.15349015978791
7,17.429009405979027
8,17.39346714330532
9,18.8417653346579
10,17.616764704024142
11,17.54164305414316
12,18.370718645751964
13,18.496012573648493
14,17.74642905526751
15,18.164269563177047
16,18.864180970519833
17,18.49343841127278
18,18.295599270948205
19,18.429929455565624
20,19.42767297233003
21,18.79620883831748
22,18.30336043438815
23,18.330131005571204
24,18.807118708635105
25,18.874485495289996
26,18.860532271670746
27,18.480867647078842
28,19.079221794727303
29,18.838868286322356
30,18.925247018306493