ista ich gain
   1   0  21.13
   1   1  21.35
   1   2  21.09
   1   3  21.48
   1   4  21.07
   1   5  21.33
   1   6  21.06
   1   7  21.40
   1   8  20.97
   1   9  21.28
   1  10  21.02
   1  11  21.27
   1  12  20.92
   1  13  21.41
   1  14  21.08
   1  15  21.37
   1  16  21.10
   1  17  21.31
   1  18  21.09
   1  19  21.36
   1  20  21.09
   1  21  21.36
   1  22  20.97
   1  23  21.42
   1  24  222288.09
   1  25  21.20
   1  26  21.13
   1  27  21.47
   1  28  21.15
   1  29  943172.09
   1  30  20.99
   1  31  21.22
   2   0  21.09
   2   1  21.38
   2   2  21.34
   2   3  21.28
   2   4  21.10
   2   5  21.51
   2   6  21.13
   2   7  21.37
   2   8  21.25
   2   9  21.40
   2  10  21.24
   2  11  21.15
   2  12  21.19
   2  13  21.38
   2  14  21.19
   2  15  21.29
   2  16  21.06
   2  17  21.42
   2  18  21.13
   2  19  21.38
   2  20  21.13
   2  21  21.29
   2  22  21.19
   2  23  43.50
   2  24  21.02
   2  25  21.42
   2  26  21.24
   2  27  314520.71
   2  28  21.10
   2  29  21.22
   2  30  21.27
   2  31  21.32
ista type  n gain --- averages:
   1 even 15 21.06
   1 odd  15 21.35
   2 even 16 21.17
   2 odd  15 22.82