17 and <=33]]> Vietnam, China, Laos TS 5675504 3527135 2097768 50601 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