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CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Retail revenues | $ 6,185,558 | $ 5,570,654 | $ 18,884,929 | $ 18,111,274
Bulk revenues | 8,577,456 | 7,881,464 | 25,294,821 | 23,615,787
Services revenues | 807,424 | 111,302 | 1,054,100 | 360,758
Manufacturing revenues | 3,253,750 | 3,008,783 | 4,798,948 | 5,444,678
Total revenues | 18,824,188 | 16,572,203 | 50,032,798 | 47,532,497
Cost of retail revenues | 2,750,599 | 2,488,441 | 8,234,803 | 7,895,617
Cost of bulk revenues | 5,658,373 | 5,582,401 | 16,848,668 | 15,750,402
Cost of services revenues | 682,713 | 114,667 | 921,653 | 320,586
Cost of manufacturing revenues | 2,205,830 | 2,078,888 | 3,300,370 | 3,967,945
Total cost of revenues | 11,297,515 | 10,264,397 | 29,305,494 | 27,934,550
Gross profit | 7,526,673 | 6,307,806 | 20,727,304 | 19,597,947
General and administrative expenses | 4,941,564 | 4,896,323 | 14,263,762 | 14,695,184
Loss on asset dispositions and impairments, net | 12,415 | 578,480 | 14,405 | 1,578,480
Income from operations | 2,572,694 | 833,003 | 6,449,137 | 3,324,283
Other income (expense): |  |  |  |
Interest income | 172,805 | 70,741 | 504,028 | 301,813
Interest expense | (2,492) | (1,016) | (7,122) | (11,178)
Profit-sharing income from OC-BVI | 536,625 | 36,450 | 621,675 | 46,575
Equity in the earnings of OC-BVI | 1,472,154 | 138,913 | 1,710,230 | 127,955
Net unrealized gain (loss) on put/call options | 75,000 | 171,000 | (47,000) | 323,000
Other | 48,841 | 31,206 | (26,670) | 83,791
Other income, net | 2,302,933 | 447,294 | 2,755,141 | 871,956
Income before income taxes | 4,875,627 | 1,280,297 | 9,204,278 | 4,196,239
Provision for (benefit from) income taxes | 12,659 | (136,447) | (113,607) | (412,592)
Net income | 4,862,968 | 1,416,744 | 9,317,885 | 4,608,831
Income attributable to non-controlling interests | 310,579 | 255,605 | 484,778 | 191,916
Net income attributable to Consolidated Water Co. Ltd. stockholders | $ 4,552,389 | $ 1,161,139 | $ 8,833,107 | $ 4,416,915
Basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | $ 0.30 | $ 0.08 | $ 0.59 | $ 0.30
Diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | 0.30 | 0.08 | 0.58 | 0.29
Dividends declared per common share | $ 0.085 | $ 0.075 | $ 0.255 | $ 0.225
Weighted average number of common shares used in the determination of: |  |  |  |
Basic earnings per share | 14,963,195 | 14,898,246 | 14,960,602 | 14,886,738
Diluted earnings per share | 15,124,720 | 15,072,142 | 15,119,415 | 15,054,343

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