Sunland Specialties just purchased inventory-management computer software at a cost of $1,873,950. Cost savings from the investment over the next six years will produce the following cash flow stream: $183,340, $264,240, $360,600, $526,250, $783,320, and $673,740. What is the payback period on this investment? (Round answer to 2 decimal places,e.g. 15.25.)

Payback period is---------------------years