Year	Cost	Benefit	Net benefit	NPV at r =:
Year	Cost	Benefit	Net benefit	15%	23%	31%	33.7%
1	133,350,434	0	−133,350,434	−115,956,899	−108,414,987	−101,794,224.4	−99,738,544.5
2	77,187,118	82,747,800	5,560,682	4,204,674.48	3,675,511.931	3,240,301.847	3,110,750.97
3	74,456,271	82,747,800	8,291,529	5,451,814.91	445,775.5444	368,992.6253	347,086.204
4	16,960,000	82,747,800	65,787,800	37,614,388.2	28,742,525	22,338,817.54	20,588,264.28
5	16,960,000	82,747,800	65,787,800	32,708,163.6	23,367,906.5	17,052,532.47	15,398,851.37
Total	318,913,823	330,991,200	12,077,377	−35,977,858	−52,183,268.02	−58,793,579.95	−60,293,591.68