Based on the provided source material, what is the timeline of Sai Baba's residence in Shirdi?

Chapter 10 provides a specific timeline for Sai Baba's life in Shirdi, noting that He spent a total of sixty years there in the spirit of a 'Kshetra Sanyasi,' one who vows never to leave a holy place. His first appearance in the village occurred when He was sixteen years old, and He stayed for three years at that time. He then disappeared for a period before returning to Shirdi permanently with the marriage party of Chand Patil. At the time of His final return, He was twenty years old. From that point on, He lived continuously in Shirdi for the next sixty years, a fact that the text says is known to everyone.