By MarketsFarm WINNIPEG, May 6 (MarketsFarm) – The Canadian dollar was lower at midweek, due to losses in crude oil prices and comparable strength in the United States dollar. The dollar finished the day at US$0.7080 or US$1=C$1.4124, compared to Tuesday when it closed at US$0.7127 or US$1=C$1.4032. Benchmark crude oil prices were lower after