NINKI index for DAIGO's BUTTERFLY / Ima Aitakute ... single
http://www.oricon.co.jp/rank/ns/w/2013-11-29/
The NINKI index are based on the results of a poll conducted by Oricon indicating interest 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 .