W1,W2,W3,W4,W5,W6refer to pork , beef , poultry , egg , fish , other animal products , respectively ;Xrefers to total animal expenditure .

• 注:W1；W2；W3；W4；W5；W6分别为猪肉；牛肉；家禽；蛋类；鱼类；其他畜产品占畜产品支出份额;X为畜产品总消费支出.