Since there's a spike followed by a drop, it seems like some of the data points are "misattributed" to the neighboring bucket.
Since it happens at the same place in each graph (eg a spike at 0.28-0.29, followed by a drop at 0.29-0.30) I wonder if it's some kind of number-theoretic effect from the fact it's actually a ratio of integers. For example, with less than 20 views there's no way to get to the 0.29-0.30 bucket, but 4 ways to get into the 0.28-0.29 bucket. Hmm.
Since it happens at the same place in each graph (eg a spike at 0.28-0.29, followed by a drop at 0.29-0.30) I wonder if it's some kind of number-theoretic effect from the fact it's actually a ratio of integers. For example, with less than 20 views there's no way to get to the 0.29-0.30 bucket, but 4 ways to get into the 0.28-0.29 bucket. Hmm.
Also notable that 0.56 is exactly twice 0.28.