50 and <=100]]> China, Russia, North Korea, South Korea, Japan 50-100 mm 37148974 21 8715937 14481 9542840 16039529 2836187 5 0 5 9 1 100 and <=250]]> China, Russia, North Korea, South Korea, Japan 100-250 mm 23112745 15 12402928 2860 5272190 5032029 402738 8 0 3 3 0 250 and <=500]]> China, North Korea, South Korea, Japan 250-500 mm 512116 0 129134 0 208920 168066 5996 0 0 0 0 0 500 and <=750]]> China, North Korea, South Korea 500-750 mm 764 0 222 0 430 112 0 0 0 0 0 0 750 and <=1000]]> 750-1000 mm 0 0 1000 and <=10000]]> more than 1000 mm 0 0