step_ahead,prediction
1,9.530804520165548
2,9.402581472555175
3,9.741287553158278
4,9.769150062510743
5,10.129845244232564
6,9.941995473398515
7,10.037373258455967
8,10.003081798516213
9,10.333189384220168
10,10.190374785838648
11,10.195090690053378
12,10.430600682664663
13,10.018526769578456
14,10.527670662639041
15,10.67768000613898