For a cache there are 3 metrics:
"current_number_of_entries_in_memory" : 0, <-- current number in memory
"current_number_of_entries" : 14, <-- total number of entries (size)

But "total_number_of_entries" is not the total number of entries in this cache but the number of put's for the running server.
See code https://github.com/infinispan/infinispan/blob/master/core/src/main/java/org/infinispan/stats/impl/StatsImpl.java#L174

So the naming "total number" is not correct and should be changed.