Table 2. Complexity of seven-sets data.

Data Set	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32
1-set intersections	7	5	4	7	7	7	5	6	7	7	7	7	7	4	7	7
2-set intersections		2	1	1	2	4	10	2	2	1	3	6	4	2	4	2
3-set intersections					2		1		1		2		1	4		2
4-set intersections														2
≥ 5-set intersections														1 × 5, 1 × 6
Total intersections	7	8	5	8	11	11	16	8	10	8	12	13	12	14	11	11
Card. range sets	1–4	1–17	1–20	1–13	5–55	3–25	4–47	4–28	1–39	2–53	10–39	1–105	8–57	11-149	7–33	3–55
Card. range int.	1–4	1–15	1–20	1–11	1–33	1–21	1–14	4–16	1–24	2–53	1–33	1–61	2–57	1–98	2–25	1–33
Total items	12	32	19	35	88	60	62	64	70	93	120	138	167	176	81	86
Task Type	S>	S<	I>	I<	S>	S<	I>	I<	S>	S<	I>	I<	S>	S<	I>	I<