Attempted MS memory available notifications,Successful MS memory available notifications,Attempted Identification requests to PVLRs,Successful Identification requests to PVLRs,Attempted page requests,Successful page requests,Attempted page requests per Location Area,Successful page requests per Location Area,Attempted requests for Authentication sets sent to HLR by VLRs,Successful received Authentication sets from HLR to VLRs,Empty responses to request for Authentication sets from HLR to VLRs,Attempted authentication procedures in VLR,Successful authentication procedures in the VLR,Attempted intra-VLR Location Updates,Successful intra-VLR Location Updates,Attempted inter-VLR Location Updates,Successful inter-VLR Location Updates,Arrivals of Visitors from other PLMNs,Subscribers from other PLMNs registered in the VLR,Number of roamers in the VLR