Table 1. Di-tags possessing one barcode combination.

The Copies column refers to how many times a di-tag was observed in the dataset, the Di-tags column refers to the number of different di-tags observed with the specified number of copies, and the One column lists the percentage of di-tags in which all the copies possessed identical barcodes.

	Sample 1		Sample 2
Copies	Di-tags	One(%)	Di-tags	One(%)
2	767,342	99.4	1,873,527	99.6
3	36,789	99.0	147,629	99.4
4	1,981	98.6	13,483	99.3
5	112	96.4	1,326	99.1
6	8	100.0	136	100.0
7	-	-	10	100.0
8	-	-	1	100.0