step_ahead,prediction
1,3.955857
2,4.002112
3,4.3908906
4,4.012607
5,4.096055
6,3.9975288
7,4.08179
8,4.059897
9,3.012342
10,4.179062
11,3.9445295
12,4.291492
13,4.176717
14,3.7335606
15,3.5699217
16,4.4334474
17,3.9804425
18,4.3694725
19,3.75878
20,4.4824495
21,3.9613256
22,3.3178058
23,4.180216
24,4.347381
25,4.1602917
26,4.038417
27,4.6084394
28,4.12833
29,4.164626
30,4.1990547