Bulgaria's economy expanded by 3.0% year-on-year in the third quarter of 2018, after growing by 3.4% in the previous quarter, flash data from the National Statistical Institute (NSI) showed on Wednesday. On a quarterly comparison basis, Bulgaria's GDP growth slowed to 0.5% in the third quarter of 2018, from 0.8% in the second quarter, according to the NSI data. Calculated in current prices, Bulgaria's GDP totalled 29 billion levs ($16.7 billion/14.8 billion euro) in the second quarter of the year.