Sullivan County's sales-tax revenue rose 18 percent in the first half of this year, the second-highest increase in the state, according to a report from the Office of the New York State Comptroller on Wednesday.The report shows the county collected close to $21.46 million, up about $3.28 million from $18.18 million during the first six months of last year."It’s obviously good news and it’s indicative of the economic growth and development we’re seeing, [...]