filename: 500
hash function: abcdx
total buckets:       16411
total tuples:        10020 (61.06%)
used buckets:        7761 (47.29%)
maximum list length: 4
average list length: 1.29
hash cost per tuple: 43 cyc, 86 ns, 12 Mhz on 498 Mhz CPU (INNER)
Count	Length	CT
12	4	0.48%
256	3	8.14%
1711	2	42.30%
5782	1	100.00%
8650	0	100.00%