id	keyword
easat-7861	change
easat-7861	technical
easat-7861	efficiency
easat-7861	productivity
easat-7861	growth
easat-7861	vietnam
easat-7861	production
easat-7861	tfp
easat-7861	period
easat-7861	vol
easat-7861	output
easat-7861	provinces