Total Public Debt to GDP Ratio (%)
Waning ability to repay external debt

Tax-to-GDP (%)
Low commitment to steady tax collection

Public Debt-to-GDP Ratio: The ratio of Nigerias cumulative government debt to national GDP has maintained an upward trend indicating the countrys declining economic productivity and ability to repay its external debt.
Tax-to-GDP Ratio: The ratio of tax collected compared to national GDPA has fluctuated heavily, partly indicating the lack of lack of commitment to steady tax collection by successive governments.