Mental illness such as schizophrenia and delusional disorder accounted for 41 percent of the hate crimes last year, according to a report by the Supreme Prosecutors' Office on Tuesday.
Alcohol or drug intake was another big factor, as well as general dissatisfaction. Poverty also resulted in indiscriminate attacks.
Some 64 percent of these crimes were carried out by unemployed or daily wage laborers. Sixty percent of the offenders were in their 30s or 40s, the most economically active age groups.
Hate crimes do not only target people. Some people set homes on fire, vandalize parked cars or throw bricks at windows of high rise apartment buildings.
Most offenders had prior convictions, often multiple counts of violence, with 78 percent. Twenty percent had 11 or more previous offenses to their name.