A 14 year old cat is equivalent to a 77 year old human.
The first year of a cat's life is equal to 15 years of human life, 2nd and third each count for 9 years, then 4 years for each cat year till the end of the cat's life. 15+18+4*11= 77 human years
Duke Ellington is an old cat, and should retire now.
