output speed
1  0.123  2.45
2  0.500  2.70
3  0.653  2.90
4  0.558  3.05
5  1.057  3.40
6  1.137  3.60
7  1.144  3.95
8  1.194  4.10
9  1.562  4.60
10 1.582  5.00
11 1.501  5.45
12 1.737  5.80
13 1.822  6.00
14 1.866  6.20
15 1.930  6.35
16 1.800  7.00
17 2.088  7.40
18 2.179  7.85
19 2.166  8.15
20 2.112  8.80
21 2.303  9.10
22 2.294  9.55
23 2.386  9.70
24 2.236 10.00
25 2.310 10.20