grocery expenses

Hi everyone. Can anyone share with me the following: 1.how much is your monthly grocery expenses 2.how many people are there in your house 3.where do you do your grocery shopping My answer is 1.$150-160 per month 2. 2 adults n 1 kid 3. Usually in giant ntuc or sheng siong. I am trying to see if i have spend too much and are finding ways to save. Tia!