01 179.90 Ikimonogakari - NEWTRAL
02 41.30 U-KISS - A Shared Dream
03 25.60 Hirahara Ayaka - Doki!
04 24.10 Crazy Ken Band - ITALIAN GARDEN
05 23.60 Chihara Minori - D-Formation
06 21.80 Do As Infinity - TIME MACHINE
07 21.40 GARNET CROW - GOODBYE LONELY ~Bside collection~
08 20.50 Tommy february6 & Tommy heavenly6 - FEBRUARY & HEAVENLY
09 15.90 POLYSICS - 15th P
10 14.70 ISSA X SoulJa - ISM
01 111.10 Yamashita Tomohisa - Ai, Texas
02 100.70 Watanabe Mayu - Synchro Tokimeki
03 50.50 U-KISS - Forbidden Love
04 47.20 TOKIO - Haneda Kuko no Kibo / KIBOU
05 43.20 T-ARA - Roly-Poly (Japanese Ver.)
06 36.40 GReeeeN - Misenai Namida wa, Kitto Itsuka
07 28.00 NIGHTMARE - mimic
08 26.70 FLOWER - SAKURA Regret
09 21.60 Secret - Korekurai no Sayonara
10 18.50 BONNIE PINK - Tsumetai Ame
The NINKI ratings are the results of a POLL conducted by Oricon indicating degree of interest/degree of purchase intention in an upcoming release. Although the ratings are never a true reflection of sales, it does give a strong prediction about where the single/album will place in terms of popularity amongst the Japanese public. However, they are NOT an indication of how it will perform in terms of chart positioning and total sales for the week.
According to Oricon's note under the NINKI page, Oricon researches about 870,000 of its members by random sampling of 400 members in their 10s until 40s. 50 men and 50 women are chosen randomly to participate in each age group. (However, some popular artists have had NINKI exceeding 500, so we can only assume that Oricon has extended the polling to around 600/700 people now.)
Not surprised at Ikimonogakari getting no.1 next week, so go Iki! Only hoping that acts like Do As Infinity, Tommy february6/heavenly6, TOKIO, GReeeeN and FLOWER would surpass their NINKI. Also, it'd be interesting to see who gets the no.1 single as I think that both Yamapi and Mayuyu will battle it out.
Source 1, 2