evidence: The list of countries by homicide rate is derived from United Nations Office on Drugs and Crime (UNODC) data, and is expressed in number of deaths per 100,000 population per year. For example, a homicide rate of 30 out of 100,000 is presented in the table as "30", and corresponds to 0.03% of the population dying by homicide.[1][2][3] The reliability of underlying national murder rate data may vary.[4][5] Only UNODC-vetted data is used in the main table to maintain consistency.[1] In some cases, it may not be as up to date as other sources. Homicide rates may be under-reported for political reasons.[6][7][page needed] [...] data from 2004-2007 . The Geneva Declaration on Armed Violence and Development. - ^ 2011 Global Study on Homicide: Trends, Contexts, Data. "data from 2010 or latest available year". United Nations Office on Drugs and Crime (UNODC). Vienna, Austria.