À¤³¦¤ÎÆÚÆùÅý·×¡§Ãæ±û¥¢¥á¥ê¥«½ô¹ñ
´üËöºß¸ËÎ̤Ⱥ߾ÃÈæΨ
¡¡Data Sources: USDA:
PS&D View
July 2024; USBC:
International Data Base
, August 2006