filename: 500
hash function: abcd
total buckets:       262144
total tuples:        10020 (3.82%)
used buckets:        874 (0.33%)
maximum list length: 20
average list length: 11.46
hash cost per tuple: 43 cyc, 87 ns, 12 Mhz on 497 Mhz CPU (INNER)
Count	Length	CT
128	20	25.55%
746	10	100.00%
261270	0	100.00%