^^
"In the Kanto region, the first half of the program averaged 35.2%, and the second half averaged 41.6%. In the Kansai region, the ratings were 34.1% and 41.9%, respectively.
By region, Kouhaku had the highest ratings in Niigata (44.2% and 48.9%) and Fukushima (45.7% and 47.5%)."
There's some info
here and
here. I found it in a post on livejournal.
ahh i was beaten to it haha.