Vietnam General Government Net Debt, % of GDP. Units: Percent of GDP. Multiplier: . Estimates begin after 2013 . This data is sourced from www.opendataforafrica.org where it is offered under an open data licence (www.opendataforafrica.org/legal/termsofuse). Net debt is calculated as gross debt minus financial assets corresponding to debt instruments. These financial assets are: monetary gold and SDRs, currency and deposits, debt securities, loans, insurance, pension, and standardized guarantee schemes, and other accounts receivable. See notes for: General government net debt (National currency)..