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CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Total revenues | $ 18,305,260 | $ 15,064,066 | $ 35,293,784 | $ 29,618,729
Total cost of revenues | 10,752,511 | 8,879,847 | 20,778,732 | 17,265,469
Gross profit | 7,552,749 | 6,184,219 | 14,515,052 | 12,353,260
General and administrative expenses | 4,994,992 | 4,446,969 | 9,373,026 | 9,108,680
Gain (loss) on asset dispositions and impairments, net | 397,301 | (650) | 441,070 | (1,990)
Income from operations | 2,955,058 | 1,736,600 | 5,583,096 | 3,242,590
Other income (expense): |  |  |  |
Interest income | 140,467 | 170,102 | 290,652 | 331,223
Interest expense | (1,482) | (2,876) | (1,482) | (4,630)
Profit-sharing income from OC-BVI | 2,025 | 56,700 | 8,100 | 85,050
Equity in the earnings (losses) of OC-BVI | (24,949) | 157,483 | (11,488) | 238,076
Net unrealized gain (loss) on put/call options | 0 | 84,000 | (24,000) | (122,000)
Other | (65,728) | (153,377) | 48,641 | (68,090)
Other income, net | 50,333 | 312,032 | 310,423 | 459,629
Income before income taxes | 3,005,391 | 2,048,632 | 5,893,519 | 3,702,219
Provision for (benefit from) income taxes | 64,233 | (48,878) | 113,192 | (126,266)
Net income from continuing operations | 2,941,158 | 2,097,510 | 5,780,327 | 3,828,485
Income from continuing operations attributable to non-controlling interests | 464,896 | 208,692 | 738,804 | 174,199
Net income from continuing operations attributable to Consolidated Water Co. Ltd. stockholders | 2,476,262 | 1,888,818 | 5,041,523 | 3,654,286
Gain on sale of discontinued operations | 0 | 0 | 3,621,170 | 0
Net income from discontinued operations | 0 | 299,375 | 0 | 626,432
Total income from discontinued operations | 0 | 299,375 | 3,621,170 | 626,432
Net income attributable to Consolidated Water Co. Ltd. stockholders | $ 2,476,262 | $ 2,188,193 | $ 8,662,693 | $ 4,280,718
Basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders |  |  |  |
Continuing operations | $ 0.16 | $ 0.13 | $ 0.34 | $ 0.25
Discontinued operations | 0 | 0.02 | 0.24 | 0.04
Basic earnings per share | 0.16 | 0.15 | 0.58 | 0.29
Diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders |  |  |  |
Continuing operations | 0.16 | 0.12 | 0.33 | 0.24
Discontinued operations | 0 | 0.02 | 0.24 | 0.04
Diluted earnings per share | 0.16 | 0.14 | 0.57 | 0.28
Dividends declared per common and redeemable preferred shares | $ 0.085 | $ 0.085 | $ 0.17 | $ 0.17
Weighted average number of common shares used in the determination of: |  |  |  |
Basic earnings per share | 15,020,344 | 14,959,309 | 15,020,344 | 14,959,284
Diluted earnings per share | 15,130,778 | 15,117,726 | 15,130,071 | 15,116,712

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