This read-write INTEGER, in minutes with allowed values five(5), ten(10), fifteen(15), twenty(20), thirty(30), or sixty(60), sets the bucket interval used for collecting statistics, defining the sampling window and, per the description, also the amount of time an NMS has to upload a statistics file before missing that interval's data. An admin picks a shorter interval for finer-grained visibility at the cost of a tighter upload window, or a longer interval to relax upload timing at the cost of coarser data. If an NMS is repeatedly missing statistics files, an admin might lengthen this interval to give the collection system more time to upload before the bucket rolls over.