filename: 500
hash function: crc32
total buckets:       16384
total tuples:        10020 (61.16%)
used buckets:        8497 (51.86%)
maximum list length: 2
average list length: 1.18
hash cost per tuple: 189 cyc, 381 ns, 3 Mhz on 498 Mhz CPU (INNER)
Count	Length	CT
1523	2	30.40%
6974	1	100.00%
7887	0	100.00%