The price depends on the province you live. Exemple: Quebec province is cheaper than ontario, cause quebec have many phone providers. No one will pay the same thing for a 5GB, it's depend where you live. I know you asked for a price, but the price range vary, so i cant give you a price. I can give you an exemple for a 6gb plan the lowest plan : 39$ in Quebec, and 45$ in Ontario.
I hope this help,
Have a nice day