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Episode ratings for the SBS drama Nobody Knows

Date	Episode	Part	TNmS (%)	Nielsen Korea (%)
			Nationwide	Nationwide	Seoul
2020-03-02	1	1	6.7	6.6 (16th)	6.9 (17th)
		2	8.9	9.0 (5th)	9.6 (4th)
2020-03-03	2	1	6.6	7.1 (11th)	8.1 (8th)
		2	8.0	8.8 (7th)	9.6 (4th)
2020-03-09	3	1	6.3	7.1 (14th)	7.8 (11th)
		2	7.9	9.3 (7th)	10.0 (4th)
2020-03-10	4	1	7.3	7.8 (10th)	8.2 (7th)
		2	8.8	9.5 (6th)	10.2 (5th)
2020-03-16	5	1	6.8	7.5 (14th)	7.9 (15th)
		2	7.9	9.8 (5th)	10.5 (4th)
2020-03-17	6	1	6.6	7.6 (11th)	8.4 (7th)
		2	7.5	9.1 (5th)	9.5 (4th)
2020-03-23	7	1	6.2	6.8 (16th)	7.4 (14th)
		2	7.7	9.1 (8th)	9.5 (6th)
2020-03-24	8	1	7.1	7.2 (11th)	7.5 (10th)
		2	8.8	9.8 (5th)	10.5 (4th)
2020-03-30	9	1	6.5	7.0 (16th)	7.5 (16th)
		2	8.4	9.0 (7th)	9.3 (6th)
2020-03-31	10	1	6.1	7.0 (11th)	7.3 (9th)
		2	9.0	9.6 (4th)	10.1 (4th)
2020-04-06	11	1	6.9	7.4 (14th)	7.8 (11th)
		2	8.7	9.2 (5th)	9.5 (5th)
2020-04-07	12	1	7.9	8.1 (9th)	8.7 (5th)
		2	8.9	9.7 (4th)	10.4 (4th)
2020-04-13	13	1	7.9	7.9 (12th)	8.8 (6th)
		2	-	9.9 (5th)	11.1 (3rd)
2020-04-14	14	1	7.2	8.6 (7th)	9.5 (5th)
		2	8.6	10.5 (4th)	11.2 (4th)
2020-04-20	15	1	7.2	8.1 (8th)	8.8 (7th)
		2	8.8	10.0 (6th)	10.8 (4th)
2020-04-21	16	1	7.9	8.8 (8th)	9.8 (5th)
		2	9.6	11.4 (4th)	12.0 (3rd)
Average			-	8.6%	9.2%

Source: TNmS Media, Nielsen Korea