A geologist keeps track of the number of earthquakes experienced by his country each year. Over the past 10 years, these numbers were: 0, 14, 2, 13, 12, 0, 12, 3, 1, 150, 14, 2, 13, 12, 0, 12, 3, 1, 15. He decides to fit a Poisson model to this data. What Poisson parameter should he use?