The total income average per household member in Bulgaria has increased by 4.2% year-on-year in the first quarter of 2016, reaching BGN 1,237, according to official data.

Wages and salaries led in a breakdown by source of income with a share of 57.1% of total income, followed by pensions (26.5%), self-employment (6.6%) and social benefits (2.8%), the National Statistical Institute (NSI) announced on Monday.

The total expenditure average per household member during the first quarter of the year was BGN 1,110, an increase of 0.9% compared with the same quarter of 2015.

The released figures were based on a quarterly, random-sample household budget survey, the NSI said.

About a third of the total expenditure per household member in Bulgaria during the first quarter of 2016 was on food (31.1%), followed by expenditure on housing (18.1%) and transport and communication (12.0%).

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