filename: 500
hash function: buzhash
total buckets:       65536
total tuples:        10020 (15.29%)
used buckets:        9319 (14.22%)
maximum list length: 4
average list length: 1.08
hash cost per tuple: 148 cyc, 298 ns, 3 Mhz on 497 Mhz CPU (INNER)
Count	Length	CT
2	4	0.08%
25	3	0.83%
645	2	13.70%
8647	1	100.00%
56217	0	100.00%