The SIPRI Military Expenditure Database provides military expenditure data by country in the following three formats:

• in local currency, at current prices. 1988-2009
• in US dollars, at constant (2008) prices and exchange rates, 1988-2009
• as a share (%) of gross domestic product (GDP), 1988-2008
  
  

Military expenditure in local currency at current prices is presented according to the financial year of each country. Figures in constant (2008) US$ and as a share of GDP are present according to calendar year, calculated on the assumption that, where financial years do not correspond to calendar years, spending is distributed evenly through the year. (see Sources and Methods for SIPRI military expenditure data).

SIPRI military expenditure data is based on open sources only, including a SIPRI questionnaire which is sent out annually to all countries included in the database. The collected data is processed to achieve consistent time series which are, as far as possible, in accordance with the SIPRI definition of military expenditure, detailed in the sources and methods.

User rules

You may freely download or cite the data in the database. Any reproduction—in any medium, electronic or printed—of the data or the creation of any link to the database is authorized only on request. Permission may be granted provided that:

• A request for permission is submitted to SIPRI. A request must include your full name, where you are from, your affiliation, and for what purposes you require the data.
• Attribution to SIPRI in a source credit-line is given, including the phrase "Information from the Stockholm International Peace Research Institute (SIPRI), URL ADDRESS". This applies to both citations and reproduction.
  
  

When text or data is to be used for commercial purposes, and once permission has been obtained, the parties will negotiate a reasonable royalty for such commercial use.