50 and <=100]]> China, Russia, North Korea, South Korea 50-100 mm 8813172 5 5920721 109491 2782864 96 3 0 1 0 100 and <=250]]> China, Russia, North Korea 100-250 mm 15852134 10 13767486 36098 2048550 0 9 0 1 0 250 and <=500]]> China, Russia, North Korea 250-500 mm 305783 0 267014 97 38672 0 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