1 663 ฿ 1 509 ฿ 0 Jan 1 509 ฿ Feb 1 509 ฿ Mar 1 509 ฿ Apr 1 509 ฿ May 1 509 ฿ Jun 1 509 ฿ Jul 1 509 ฿ Aug 1 509 ฿ Sep 1 663 ฿ Oct 1 509 ฿ Nov 1 509 ฿ Dec 1 509 ฿