1 540 ฿ 1 388 ฿ 0 Jan 1 447 ฿ Feb 1 540 ฿ Mar 1 447 ฿ Apr 1 478 ฿ May 1 417 ฿ Jun 1 423 ฿ Jul 1 426 ฿ Aug 1 409 ฿ Sep 1 415 ฿ Oct 1 388 ฿ Nov 1 509 ฿ Dec 1 540 ฿