Gasoline prices have crept up since the start of the new year, hitting drivers’ wallets for an extra four cents per litre since last month.Customers paid slightly over $2.14 per litre for regular gasoline at the pumps in January up from $2.10 in December and up eight cents from January 2012.Diesel prices fell two cents to $1.90 per litre in January, compared to December 2012.