One idea, nothing urgent, but perhaps can we could have a column Total accounts when exporting usage to csv, which would include disabled, to make it easier, as we charge that too usually.
See:
Super,Admin,"Disabled Admin","Max Basic","Max Enhanced","Max Quota","Active Basic","Active Enhanced","Active Quota","Disabled Basic","Disabled Enhanced","Disabled Quota"
Would be a nice a total accounts, which would include Active basic + disabled.