#sum    chi_USDS  b_USDS  eb_USDS a_USDS  ea_USDS  chi_US    b_US    eb_US   a_US    ea_US    chi_DS    b_DS    eb_DS   a_DS    ea_DS    chi_USpchi_DS chi_USDS-(chi_US+chi_DS) pc_difference
sum74   27.2      9.25    0.43    -2.14    0.29    11.9      8.65    2.29    -2.39    1.51    3.4       1.05    5.58    2.77    3.48     15.3     11.8     0.44    
sum84   36.4      11.19    0.40   -2.08    0.27    19.4      8.58    2.14    -3.68    1.40    11.1      14.01    5.22   -3.79    3.24    30.5     6.0      0.16    
sum68   41.0      9.50    0.44    -2.09    0.29    9.9       5.54    2.33    -4.63    1.54    25.1      4.20    5.68    1.25    3.53     35.0     6.1      0.15    
sum70   40.2      9.89    0.38    -0.91    0.25    10.9      10.65    2.00   -0.32    1.32    22.7      1.89    4.93    3.95    3.07     33.7     6.5      0.16    
sum71   57.6      7.23    0.40    -1.77    0.26    13.6      12.17    2.08   1.55    1.37     32.0      -1.60    5.15   3.49    3.20     45.6     12.0     0.21    
sum72   28.2      6.93    0.40    -2.05    0.26    11.8      10.31    2.10   0.20    1.38     10.5      1.77    5.13    0.91    3.18     22.4     5.9      0.21    
sum75   34.1      7.89    0.39    -0.81    0.26    22.6      8.38    2.06    -0.47    1.36    8.0       -0.70    5.17   4.44    3.21     30.6     3.5      0.10    
sum76   13.9      9.05    0.41    -2.66    0.27    7.0       10.50    2.21   -1.78    1.45    4.5       7.75    5.26    -1.86    3.28    11.5     2.4      0.17    
sum83   29.8      11.41    0.39   -0.94    0.26    14.5      9.77    2.07    -1.86    1.36    4.3       8.41    5.14    0.85    3.20     18.7     11.0     0.37    
sum86   27.7      9.72    0.38    -0.90    0.25    10.9      9.14    2.03    -1.28    1.34    14.1      16.17    4.93   -4.82    3.06    25.0     2.7      0.10    
sum87   38.1      10.56    0.40   -1.60    0.27    17.4      6.50    2.12    -4.20    1.39    14.7      6.78    5.28    0.83    3.26     32.1     6.0      0.16    
sum91   37.0      11.20    0.71   -0.52    0.47    17.4      6.48    3.68    -3.76    2.42    14.0      2.27    9.36    5.45    5.83     31.3     5.6      0.15    
sum92   32.1      12.96    0.60   -0.60    0.39    18.5      8.67    3.13    -3.45    2.06    6.1       -1.24    7.66   8.31    4.77     24.6     7.5      0.23    
sum93   41.9      10.10    0.52   -1.32    0.35    17.4      8.32    2.73    -2.26    1.80    12.5      7.76    6.81    0.03    4.25     29.9     11.9     0.29