Mathematics and Statistics, University of Victoria, Victoria, BC, Canada.|Statistics and Actuarial Science, Simon Fraser University, Burnaby, BC V5A 1S6, Canada.|Statistics and Actuarial Science, Simon Fraser University, Burnaby, BC V5A 1S6, Canada.|Mathematics and Statistics, University of Victoria, Victoria, BC, Canada.|Mathematics and Statistics, University of Victoria, Victoria, BC, Canada.|Mathematics and Statistics, University of Victoria, Victoria, BC, Canada.