step_ahead,prediction
1,10.935817
2,10.020216
3,10.456888
4,9.7509575
5,10.724452
6,10.104537
7,10.141708
8,9.957847
9,10.074298
10,10.505628
11,10.646801
12,10.620387
13,10.483844
14,10.527757
15,10.987778