I know it’s a bit late, but I am sure most of you out there don’t know about this quantitatively. Click for more!

Day Hatenai Sora Notes
1st day 248,828 copies The best first day for Arashi’s single.
2nd day 143,649 copies Troublemaker got 144,343 copies for second day
3rd day 62,418 copies Highest compared to other single; Dear Snow, Love Rainbow, To Be Free, Troublemaker. Troublemaker recorded 60,356 copies.
4th day 38,157 copies Monster and Troublemaker,  both recorded 38,175 and 39,274 copies respectively
5th day 31,527 copies Monster and Troublemaker, both recorded 32,011 and 31,967 copies respectively
6th day 23,115 copies Love Rainbow and Monster,  both recorded 28,630 and 27,246 copies respectively.

Source: arashinojidai.livejournal.com