I was thinking something similar, and I think it is weirdly both simplified and exaggerated. I'm gonna guess if they give a family food once, they are counted

I was thinking something similar, and I think it is weirdly both simplified and exaggerated. I'm gonna guess if they give a family food once, they are counted as "one family fed", and their output ranges from April (if they are growing lettuces, spinach, and peas) to October (for some squash varieties). I very highly doubt they grow and store such things like potatoes and carrots for wintertime use.