17 and <=33]]> Laos, Vietnam, Burma, Cambodia, Thailand TS 1737360 41 1712635 2 23684 998 33 and <=43]]> CAT. 1 0 43 and <=50]]> CAT. 2 0 50 and <=58]]> CAT. 3 0 58 and <=70]]> CAT. 4 0 70 and <=1000]]> CAT. 5 0