Carter has 153 songs on a playlist. He's categorized them in the following manner: 20 country, 31 blues, 8 Latin American, 17 jazz, 26 rap, 14 folk, and 37 hip hop. If Carter begins listening to his playlist on shuffle, what is the probability that the first song played is a folk song? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.