Pool sample: 0-3
Single site samples (4s): 0-2
Pool sample: up to 36
Single site samples (4s): up to 24
Pool sample: 4-5 10 % discount
Single site samples (4s): 3-4 10 % discount
Pool sample: 37-67 10 % discount
Single site samples (4s): 37-60 15 % discount
Pool sample: from 6 20 % discount
Single site samples (4s): from 5 25 % discount
Pool sample: from 61 20 % discount
Single site samples (4s): from 61 25 % discount