The value of goods traded between the United States and its North American neighbors that moved by surface transportation increased 6.6 percent to $82.6 billion in June compared to 12 months earlier, the U.S. Bureau of Transportation Statistics said. Adjusted for inflation and exchange rates, the June trade total was $61 billion in 2004 dollars, which represents an 11 percent gain from June 2011, the Transportation Department office said. During the past decade, U.S. s...