   From  :    To
         :   2200000   2000000   1800000   1600000   1300000   1000000 
  2200000:         0      1313       761       837       985       601 
  2000000:      1394         0       802      1001      1337       717 
  1800000:       753       765         0      1629      2928      1665 
  1600000:       755       928      1516         0     13931      6147 
  1300000:       914      1334      2544     12767         0     24183 
  1000000:       680       911      2117      7043     22561         0 
