The following table shows 40 different startup companies' first hour customers, sorted and arranged in rows of 5. What is the 70th percentile of the data?

1	5	6	7	8
17	18	18	22	29
31	39	43	46	50
50	51	55	55	57
59	62	64	67	71
72	75	77	77	82
85	92	92	92	93
93	95	98	98	100

_________ customers