b.e15.BHIST.f09_g16.20thC.28_1966_1970   b.e15.BHIST.f09_g16.20thC.28_1851_1855
    0       2.83      2.60
    1       7.05     24.59
    2      -1.07     -0.87
    3       8.05     20.80
    4      -1.04     -1.07
    5       4.00     14.16
    6      -1.59     -1.30
    7       4.06      8.96
    8      -1.22     -0.81
    9       4.23     10.66
   10      -0.63     -0.47
   11       3.54      7.35
   12      82.94     83.25