step_ahead,prediction
1,3.8188562
2,3.8865433
3,3.8979878
4,3.8787496
5,3.9154825
6,3.9872808
7,3.9161239
8,4.0079107
9,3.9417906
10,3.9413059
11,4.031798
12,4.007995
13,4.0677915
14,4.0311494
15,4.09334
16,4.050374
17,4.1142535
18,4.115271
19,4.0788407
20,4.1025047
21,4.129096
22,4.04702
23,4.0612917
24,4.2086744
25,4.166624
26,4.055409
27,4.1291795
28,4.1649766
29,4.171321
30,4.1811104