March 31 (SeeNews) - Bulgaria's first quarter consolidated budget surplus is seen reaching 1.86 billion levs ($951.1 million/1.08 billion euro), or 2.1% of the country's gross domestic product (GDP), compared to 255.9 million levs, or 0.3% of GDP, in the same period of 2015, preliminary estimates of the country's finance ministry showed on Thursday.