step_ahead,prediction
1,49.49855
2,48.896973
3,49.676403
4,50.039032
5,48.91882
6,49.41763
7,49.264496
8,49.327152
9,49.291714
10,49.29404
11,49.16594
12,49.64665
13,48.937443
14,49.341892
15,49.26306
16,49.470444
17,48.890602
18,48.566944
19,49.18096
20,48.68125
21,48.25309
22,48.554348
23,48.35121
24,47.441
25,48.21573
26,48.835773
27,48.34001
28,47.68755
29,47.279022
30,47.860554