Joann loves to watch the birds outside of her window. There is a robin that comes back every year to build a nest and lay her eggs. Joann keeps track of how many eggs the robin lays. The first year Joann keeps track, the robin lays 9 eggs, and that is the least number of eggs she lays. The range of eggs that the robin has laid is one-third the number of eggs from the first year. What is the greatest number of eggs the robin has ever laid?