50 and <=100]]> China, North Korea, South Korea, Japan 50-100 mm 74074773 42 20959938 15196726 37665462 252647 11 8 22 0 100 and <=250]]> China, North Korea, South Korea, Japan 100-250 mm 15703783 10 19488 3225991 11123644 1334660 0 2 7 0 250 and <=500]]> South Korea, Japan 250-500 mm 250848 0 0 0 239477 11371 0 0 0 0 500 and <=750]]> 500-750 mm 0 0 750 and <=1000]]> 750-1000 mm 0 0 1000 and <=10000]]> more than 1000 mm 0 0