1 663 ฿ 1 434 ฿ 0 Jan 1 447 ฿ Feb 1 447 ฿ Mar 1 509 ฿ Apr 1 571 ฿ May 1 434 ฿ Jun 1 447 ฿ Jul 1 447 ฿ Aug 1 540 ฿ Sep 1 447 ฿ Oct 1 478 ฿ Nov 1 632 ฿ Dec 1 663 ฿