step_ahead,prediction
1,77.10075
2,76.90055
3,77.18244
4,76.802826
5,77.0014
6,76.56309
7,77.19459
8,77.03955
9,76.62221
10,75.87356
11,77.19101
12,76.10649
13,77.84228
14,76.87968
15,76.969025
16,75.65072
17,76.46304
18,76.16445
19,77.00506
20,76.56455
21,76.08932
22,76.58738
23,76.39373
24,76.943825
25,76.34858
26,76.643974
27,76.333405
28,76.37803
29,77.44372
30,76.14565