Girls! What's your baby's weight in pounds per year?

Girls! What's your baby's weight in pounds per year? Our daughter turns one in two weeks. We weigh 8kg. Is that little? The baby has been on breast milk since birth. He never took a bottle. Growth is about 72-73cm. Little girl. Eats normally, from the family table. Should I worry? By the way, they just started crawling recently. I think we'll lose more kg soon.