How old was Elijah Wood when he played Frodo Baggins?

According to Appendix B of The Return of the King, Frodo was born September 22, 2968. When we first meet him, he is just turning 33. 17 years later, during the Quest, he is 50. When Frodo sails for the Grey Havens, three years after Sauron's destruction, he is 53. His date of death is not given.