1 586 ฿ 1 480 ฿ 0 Jan 1 499 ฿ Feb 1 483 ฿ Mar 1 549 ฿ Apr 1 586 ฿ May 1 543 ฿ Jun 1 481 ฿ Jul 1 480 ฿ Aug 1 483 ฿ Sep 1 498 ฿ Oct 1 538 ฿ Nov 1 509 ฿ Dec 1 522 ฿