step_ahead,prediction
1,34.73424
2,33.00121
3,31.244968
4,35.962894
5,35.9067
6,35.70181
7,36.74315
8,34.947964
9,35.189644
10,32.562164
11,34.771606
12,37.19256
13,36.480656
14,33.33564
15,35.453712
16,35.477814
17,35.848213
18,33.771236
19,33.971687
20,32.750412
21,34.675423
22,35.85169
23,34.85919
24,36.86056
25,35.52706
26,37.5323
27,35.53051
28,34.473095
29,36.649868
30,34.950794