You are consulting for the ice cream company Udderly Delicious. They are considering adding a new flavor of ice cream to their permanent line of flavors, but they are concerned that it will take too long for customers to become familiar with and enjoy the flavor. They have laid out the forecasted cash flows below: New Flavor Estimated Details: Initial Investment Cost = $26,000 at t=0 Net Operating Cash flows = $4,000 each year for the next 10 years, then $15,000 in perpetuity What is the undiscounted Payback Period (PB) for this potential venture? Provide an answer in years. You may include an answer with up to two decimal places.