   From  :    To
         :   2200000   2000000   1800000   1600000   1300000   1000000 
  2200000:         0      1280       796       858      1051       584 
  2000000:      1366         0       801       998      1480       720 
  1800000:       786       789         0      1577      3378      1478 
  1600000:       783       926      1569         0     15786      5889 
  1300000:       981      1499      2943     14800         0     25883 
  1000000:       653       871      1899      6720     24411         0 
