1 540 ฿ 1 424 ฿ 0 Jan 1 424 ฿ Feb 1 509 ฿ Mar 1 540 ฿ Apr 1 436 ฿ May 1 436 ฿ Jun 1 494 ฿ Jul 1 450 ฿ Aug 1 459 ฿ Sep 1 435 ฿ Oct 1 436 ฿ Nov 1 540 ฿ Dec 1 432 ฿