Seoul, June 22 South Korea's exports jumped 60.4 per cent from a year earlier in the first 20 days of June, data showed on Monday, setting a new fresh high for the period amid robust shipments of semiconductors.Outbound shipments reached US$62 billion in the June 1-20 period, compared with $38.6 billion tallied in the same period last year, according to the data from the Korea Customs Service, reports Yonhap news agency.It marked the highest 20-day figure on record, surpassing the previous high of $54.3 billion posted in March this year.Imports went up 23.2 percent on-year to $44.5 billion over the...