@base . a , ; "Digest of income tax statistics" . a ; ; "20040609175200.0"^^ ; ; . a . a ; "0795-9249" ; . a ; . a , , ; , , ; "Digest of income tax statistics." ; ; ; "0795-9249" ; ; "0795-9249" ; ; "0795-9249" ; "Digest of income tax statistics." , "Digest of income tax statistics" ; . "Nigeria" . . a ; "0795-9249" ; .