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List of countries by intentional homicide rate per year per 100,000 inhabitants. The reliability of underlying national murder rate data may vary. The legal definition of "intentional homicide" differs among countries. Intentional homicide may or may not include infanticide, assisted suicide or euthanasia. See how intentional homicide is defined by the United Nations Office on Drugs and Crime (UNODC) in its Global Study on Homicide report : UNODC data is used in the main table below. In some cases it is not as up to date as other sources. See farther down as to why its data is used over other sources. Intentional homicide demographics are affected by changes in trauma care, leading to changed lethality of violent assaults, so the intentional homicide rate may not necessarily indicate the overall level of societal violence. They may also be under-reported for political reasons. Another problem for the comparability of the following figures is that some data may include attempts. In general the values in these lists should not include failed attempts except when mentioned otherwise. A study undertaken by the Geneva Declaration on Armed Violence and Development estimated that there were approximately 490,000 intentional homicides in 2004. The study estimated that the global rate was 7.6 intentional homicides per 100,000 inhabitants for 2004. UNODC (United Nations Office on Drugs and Crime) reported a global average intentional homicide rate of 6.2 per 100,000 population for 2012 (in their report titled "Global Study on Homicide 2013"). UNODC calculated a rate of 6.9 in 2010.