647 ฿ 530 ฿ 0 Jan 530 ฿ Feb 554 ฿ Mar 616 ฿ Apr 616 ฿ May 647 ฿ Jun 585 ฿ Jul 585 ฿ Aug 596 ฿ Sep 587 ฿ Oct 581 ฿ Nov 589 ฿ Dec 585 ฿