step_ahead,prediction
1,12.411011
2,11.529698
3,13.836678
4,10.403377
5,12.538264
6,9.956924
7,13.746035
8,11.463754
9,12.997561
10,12.596876
11,13.4675
12,14.097756
13,11.684839
14,11.292703
15,12.923399
16,12.690875
17,12.129057
18,9.959795
19,13.512863
20,13.198801
21,11.647694
22,14.034903
23,13.968969
24,11.970653
25,11.735062
26,11.506051
27,12.085848
28,10.9252205
29,12.003583
30,12.274467