Transcript:
Mike: (In order to provide insights into my complex nature, I am about to make a statement of self-definition. Statement: My name is Michael Doonesbury. I am 19, and I am a college student. I enjoy reading and going to the movies. My goodness, I'm boring.)
So, he claims he’s 19 years old in this strip. He was born either in Late 1951 or Early 1952.