At least once per year, but not every month (i.e., 10 or fewer in past 12 months)
at least once per year, but not every month (i.e., 10 or fewer in past 12 months)
At least once per year, but not every month (i.e., 10 or fewer in past 12 months)
at least once per year, but not every month (i.e., 10 or fewer in past 12 months)