Title: Polar Network Index as a magnetic proxy for the solar cycle studies 
Authors: Priyal M., Banerjee D., Karak B.B., Munoz-Jaramillo A., 
         Ravindra B., Choudhuri A.R., Singh J.
Figure: PNI asymmetry of the nth cycle minimum phase is plotted against the 
        sunspot area asymmetry of the (n+1)th cycle.
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Byte-by-byte Description of file: dbf4.txt
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   Bytes Format Units  Label      Explanations
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   1-  2 I2     ---    Cycle      Solar cycle number 
   4- 11 F8.4   ---    SA-N       Northern hemisphere sunspot area
  13- 20 F8.4   ---    SA-S       Southern hemisphere sunspot area
  22- 29 F8.5   ---    SAA        Sunspot area asymmetry (1)
  31- 39 F9.4   ---    KKL-PNI-N  ? KKL Polar Network Index North
  41- 48 F8.3   ---    KKL-PNI-S  ? KKL Polar Network Index South
  50- 57 F8.5   ---    KKL-A      ? KKL Polar Network Index asymmetry (2)
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Note (1): Calculated as (SA-N - SA-S)/(SA-N + SA-S).
Note (2): Calculated as (KKL-PNI-N - KKL-PNI-S)/(KKL-PNI-N + KKL-PNI-S).
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15 258.1486 239.824   0.03679  519.7649  564.891 -0.04160
16 376.1699 298.4149  0.11526 1152.78   1029.68   0.05640
17 367.7286 326.7867  0.05895  669.208   774.356 -0.07283
18 499.3817 497.7968  0.00158  390.526   406.4   -0.01991
19 615.9375 578.4817  0.03135 1240.066   977.165  0.11857
20 879.0242 614.9466  0.17676 1185.342   413.834  0.48244
21 561.7275 399.2181  0.16911  198.782   297.851 -0.19948
22 628.5326 643.0476 -0.01141