The ICC "More details" section lists the fragments that were made into separate resources. (Similarly, the base packages that include this series also list the fragments when you expand the collection.)
However, the "Individual titles" section does not list the separate fragments at all, leading to a discrepancy in numbers (75 vs. 61).
Also, there might be a further discrepency? I only got 58 when I quickly counted the individual titles, although I didn't take the time to double-check that.

"This fragment was originally in the same book as the International Critical Commentary volume on ..., but for greater functionality this fragment was made into a separate resource."
If the fragment resources are part of the set, could they please be added to the individual titles? Thanks!