The pain at the pump continues to grow in the Commonwealth as price tracking website Gasbuddy reports just over a 7-cent-a gallon increase in the average price for a gallon of regular gas to $3.41. That’s 36 cents per gallon higher than a month ago and around 20 cents higher than a year ago. The national average price of gasoline is up by a dime a gallon in the last week, averaging $3.49.