From  :    To
         :   2403000   2136000   1870000   1603000 
  2403000:         0    212564    288846     82627 
  2136000:    213108         0   1031386    310866 
  1870000:    280388   1010817         0   2865922 
  1603000:     90540    331979   2836896         0