770 ฿ 423 ฿ 0 Jan 677 ฿ Feb 677 ฿ Mar 677 ฿ Apr 647 ฿ May 423 ฿ Jun 518 ฿ Jul 638 ฿ Aug 647 ฿ Sep 647 ฿ Oct 770 ฿ Nov 770 ฿ Dec 770 ฿