step_ahead,prediction
1,8.237851
2,7.4092345
3,8.102401
4,8.425937
5,7.218473
6,7.862872
7,7.2172403
8,7.384946
9,7.7858233
10,8.3331175
11,8.009404
12,7.076474
13,8.891814
14,8.021023
15,8.13359
16,8.055339
17,8.244081
18,8.959025
19,7.0550394
20,7.36298
21,8.175901
22,8.380578
23,7.172182
24,7.618871
25,7.247837
26,7.9413023
27,7.598197
28,8.1398735
29,8.545971
30,9.349391