IHIST   BHIST
    0       4.45      4.64
    1      24.63     22.13
    2      -0.73      0.00
    3      22.29     22.78
    4       1.94      2.37
    5      27.24     24.40
    6       0.17      0.70
    7      22.89     22.49
    8       0.76      1.12
    9      20.00     17.18
   10      -1.60     -1.38
   11      24.91     18.96
   12      23.81     21.90