17 and <=33]]> China, North Korea, South Korea TS 18820663 498650 12955783 5366230 33 and <=43]]> North Korea, South Korea CAT. 1 389961 0 388567 1394 43 and <=50]]> CAT. 2 0 50 and <=58]]> CAT. 3 0 58 and <=70]]> CAT. 4 0 70 and <=1000]]> CAT. 5 0