step_ahead,prediction
1,19.294956
2,19.422352
3,20.49636
4,20.383196
5,20.344269
6,19.578112
7,20.231653
8,19.743862
9,19.586714
10,19.460503
11,19.407785
12,20.109497
13,20.49603
14,19.793512
15,20.7279
16,20.52777
17,20.458118
18,19.884312
19,20.480381
20,21.138502
21,19.62463
22,20.751202
23,21.268124
24,19.018719
25,20.748953
26,19.735462
27,19.996817
28,19.956717
29,20.23294
30,21.384722