Year	Cost	Benefit	Net benefit	NPV at r =:
Year	Cost	Benefit	Net benefit	15%	23%	31%	33.7%
1	133,350,434.00	29,357,768.00	−103,992,666.00	−90,428,405.22	−84,546,882.93	−79,383,714.50	−77,801,493.45
2	77,187,118.00	112,630,568.00	−10,795,650.00	−8,163,062.38	−7,135,732.69	−6,290,804.73	−6,042,535.89
3	74,456,271.00	128,630,568.00	54,174,297.00	35,620,479.66	29,112,396.00	24,097,911.07	22,685,530.98
4	16,960,000.00	128,630,568.00	111,670,560.00	63,848,005.12	48,788,587.88	37,918,706.27	34,984,814.86
5	16,960,000.00	128,630,568.00	111,670,568.00	55,520,008.43	39,665,521.45	28,945,579.38	26,173,682.66
Total	318,913,823.00	527,880,040.00	162,727,109.00	56,397,025.60	25,883,889.70	5,287,677.48	-0.80