David and Goliath

Weight lifting is the only strength event in the Olympics in which there are different weight categories.   From this data of world records in weightlifting  http://en.wikipedia.org/wiki/List_of_Olympic_records_in_weightlifting can you deduce a relationship between strength and size?   Hint:  For size, use weight. For strength use the maximum weight lifted. Plot different powers of one against the other to find a beautiful relationship between the two.   Using your knowledge could you devise a set of weight categories and shot put weights such that men and women of different weight groups could compete together fairly?