Counting Numbers That Aren't Unique

With the number listed at the bottom, what equations can I use to count how many number are duplicate, triplicate, etc.? I've done it manually, so I know the results are as follows: duplicate numbers = 11, triplicate numbers = 2, quadruple or more = 3.

2	16	29	52	70	86
8	17	30	52	71	86
9	18	32	53	71	89
10	19	32	54	72	89
11	20	34	54	73	90
13	20	36	57	74	91
14	22	41	58	74	92
14	22	41	58	74	92
14	23	44	59	74	94
14	25	46	60	76	97
14	26	47	62	77	98
15	26	48	64	78	100
15	26	49	65	79
15	27	50	66	82
15	27	51	68	85
15	28	52	69	85

submitted by /u/framosbusot
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Counting Numbers That Aren't Unique

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2	16	29	52	70	86
8	17	30	52	71	86
9	18	32	53	71	89
10	19	32	54	72	89
11	20	34	54	73	90
13	20	36	57	74	91
14	22	41	58	74	92
14	22	41	58	74	92
14	23	44	59	74	94
14	25	46	60	76	97
14	26	47	62	77	98
15	26	48	64	78	100
15	26	49	65	79
15	27	50	66	82
15	27	51	68	85
15	28	52	69	85

2	16	29	52	70	86
8	17	30	52	71	86
9	18	32	53	71	89
10	19	32	54	72	89
11	20	34	54	73	90
13	20	36	57	74	91
14	22	41	58	74	92
14	22	41	58	74	92
14	23	44	59	74	94
14	25	46	60	76	97
14	26	47	62	77	98
15	26	48	64	78	100
15	26	49	65	79
15	27	50	66	82
15	27	51	68	85
15	28	52	69	85

2	16	29	52	70	86
8	17	30	52	71	86
9	18	32	53	71	89
10	19	32	54	72	89
11	20	34	54	73	90
13	20	36	57	74	91
14	22	41	58	74	92
14	22	41	58	74	92
14	23	44	59	74	94
14	25	46	60	76	97
14	26	47	62	77	98
15	26	48	64	78	100
15	26	49	65	79
15	27	50	66	82
15	27	51	68	85
15	28	52	69	85