internal_id	customer_label	rawseqs	trimmed_seqs	dada2_infered	chimera_seqs	chimera_free_seqs	unique_seqs	seqs(after_size_filtration)	final_unique_seqs
2604301N_V1V9	ExtNegative1	50000	46440	45593	1619	43974	23	43974	23