sample	otu1	otu2	otu3	otu4	otu5	otu6	otu7	otu8	otu9	otu10	otu11	otu12	otu13	otu14	otu15	otu16	otu17	otu18	otu19	otu20
sample1	16	7	17	24	21	13	15	20	23	18	17	23	13	22	19	13	10	20	20	20
sample2	12	20	13	22	15	30	38	20	15	21	25	11	11	16	21	14	8	25	14	24
sample3	12	10	28	16	19	18	27	19	20	16	26	20	16	27	26	28	22	19	18	18
sample4	21	17	15	19	22	22	19	28	13	12	30	24	30	23	27	17	15	19	13	20
sample5	18	15	26	18	24	13	20	21	24	23	28	28	22	18	21	22	25	13	21	16
sample6	17	22	17	22	21	24	28	22	10	11	22	21	16	11	21	22	21	19	22	20
sample7	29	19	15	15	17	15	24	28	23	25	17	38	15	18	15	24	17	15	24	16
sample8	23	13	13	19	12	20	21	18	26	21	11	24	24	28	23	22	31	17	26	14
sample9	14	14	24	23	24	24	21	21	18	25	25	20	26	17	21	15	20	19	26	19
sample10	24	26	12	19	15	21	24	24	20	20	17	25	23	20	15	21	11	24	24	19
sample11	3	5	5	7	6	8	8	2	5	3	5	6	5	3	5	9	6	5	5	6
sample12	7	5	4	7	5	7	6	0	4	4	4	2	6	2	7	6	3	5	1	4
sample13	3	4	7	7	4	6	5	7	3	6	6	7	5	6	4	6	6	3	5	4
sample14	4	10	8	5	3	8	7	5	4	4	6	7	3	6	7	6	6	1	6	6
sample15	6	9	5	5	6	7	3	5	3	3	6	3	8	6	4	5	5	6	6	9
sample16	8	5	7	8	6	3	6	5	3	3	4	6	6	6	6	8	7	4	8	5
sample17	6	8	5	7	0	1	6	6	5	5	2	7	7	4	7	4	5	5	5	5
sample18	5	7	3	8	3	8	6	5	6	3	4	2	7	9	5	-1	6	9	6	4
sample19	3	5	5	3	2	5	3	4	6	8	4	4	6	5	7	2	6	6	9	8
sample20	6	7	1	3	1	5	7	9	6	3	8	8	4	6	2	6	5	9	7	9