The average ratings for the 2012 Kouhaku Uta Gassen are out. The first half was able accumulate to 33.2% in viewer ratings while the 2nd half was able to accumulate 42.5%.
Below is the comparison with previous years (Kantou)

Other regions
Kansai:
1st half - 50.1%
Top 10 Highest Ratings Achieving Acts
01. 49.4% SMAP
02. 47.9% Ikimonogakari
03. 47.6% Princess Princess
04. 46.4% Arashi
05. 46.1% Saito Kazuyoshi
06. 45.4% Miwa Akihiro
07. 45.2% EXILE
08. 44.7% Kitajima Saburo
09. 44.4% Yuki Saori/YUKI
10. 44.2% Ishikawa Sayuri
Ratings Breakdown by Performance
The Kouhaku ratings peaked during the VTR compliation of all the performances of the night.



- Hosokawa and Koizai received the highest ratings for the first half of Kouhaku.
- Ikimonogakari received the highest rating for the red team for the second half.
- SMAP received the highest rating for the white team for the second half. They also had the highest rating overall.
- The show peaked with 50.8 for Kantou and 49.6 for Kansai during the VTR compilation of all the performances for the night.
source
I hope this will be okay, Please correct me if missed anything or messed up.
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