filename: 500
hash function: abcd
total buckets:       262147
total tuples:        10020 (3.82%)
used buckets:        9911 (3.78%)
maximum list length: 2
average list length: 1.01
hash cost per tuple: 43 cyc, 87 ns, 12 Mhz on 497 Mhz CPU (INNER)
Count	Length	CT
109	2	2.18%
9802	1	100.00%
252236	0	100.00%