checkout these CK figures:
There has been a spike in the number of CK sales as it has more than doubled in the last two days.
One 13/2/18 the sale figures was 1252 while on 14th the number of sales touched a whopping 2600. Whether the sale figures had anything to do with Valentine Day, I have no clue. The slump on 15th can be attributed to the fact that the day has just started (it's 11:24pm 15th Feb here in Melbourne) in North America.