Top 10 drama ratings for 2012 (single episode basis) - Oricon

Note that this takes into consideration the highest rating for a single episode of a drama series or the rating for an once-off drama SP so it will be different from the usual ratings ranking we see which is based on averages. Dates in brackets indicate the date when the episode or SP was shown:

1) Carnation (28 Jan 2012) - 25.0%

2) Ume-chan Sensei (11 Aug 2012) - 24.9%

3) Doctor X (13 Dec 2012 - Last episode) - 24.4%

4) 24 Jikan Terebi Drama SP Kuruma Isu de Boku wa Sora wo Tobu (25 Aug 2012) - 23.8%

5) Odoru Daisousasen THE LAST TV Salaryman Keiji to Saigo no Nanjiken (1 Sep 2012) - 21.3%

6) Aibou (21 Mar 2012 - Last episode) - 20.5%

7) PRICELESS (10 Dec 2012) - 20.1%

8) ATARU (15 Apr 2012) - 19.9%

9) Jun to Ai (1 Oct 2012) - 19.8%

10) Atsui Kuuki (22 Dec 2012) - 18.6%

Source: Oricon