Number of wastewater treatment plants (urban - primary treatment of plants) reached 10.0 in 2013 in Bulgaria, according to Eurostat. This is 9.09% less than in the previous year.
Historically, Number of Wastewater Treatment Plants (Urban - primary treatment of plants) in Bulgaria reached an all time high of 16.0 in 2006 and an all time low of 10.0 in 1999.
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