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CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Aug. 31, 2018 | Aug. 31, 2017 | Aug. 31, 2016
Revenues: |  |  |
Net merchandise sales | $ 3,053,754 | $ 2,910,062 | $ 2,820,740
Export sales | 40,581 | 34,244 | 33,813
Membership income | 50,821 | 47,743 | 45,781
Other revenue and income | 21,546 | 4,579 | 4,842
Total revenues | 3,166,702 | 2,996,628 | 2,905,176
Cost of goods sold: |  |  |
Net merchandise sales | 2,610,111 | 2,487,146 | 2,417,366
Export sales | 38,740 | 32,606 | 32,260
Non-merchandise | 7,669 |  |
Selling, general and administrative: |  |  |
Warehouse club and other operations | 291,488 | 268,629 | 252,130
General and administrative | 88,461 | 70,013 | 64,344
Pre-opening expenses | 913 | 44 | 1,191
Asset impairment | 1,929 |  |
Loss/(gain) on disposal of assets | 1,339 | 1,961 | 1,162
Total operating expenses | 3,040,650 | 2,860,399 | 2,768,453
Operating income | 126,052 | 136,229 | 136,723
Other income (expense): |  |  |
Interest income | 1,415 | 1,809 | 1,307
Interest expense | (5,071) | (6,777) | (5,891)
Other income (expense), net | 192 | 1,482 | (899)
Total other income (expense) | (3,464) | (3,486) | (5,483)
Income before provision for income taxes and income (loss) of unconsolidated affiliates | 122,588 | 132,743 | 131,240
Provision for income taxes | (48,177) | (42,018) | (42,849)
Income (loss) of unconsolidated affiliates | (8) | (1) | 332
Net income | 74,403 | 90,724 | 88,723
Less: (net income) loss attributable to noncontrolling interest | (75) |  |
Net income attributable to PriceSmart, Inc. | $ 74,328 | $ 90,724 | $ 88,723
Net income attributable to PriceSmart Inc. per share available for distribution: |  |  |
Basic | $ 2.44 | $ 2.98 | $ 2.92
Diluted | $ 2.44 | $ 2.98 | $ 2.92
Shares used in per share computations: |  |  |
Basic | 30,115 | 30,020 | 29,928
Diluted | 30,115 | 30,023 | 29,933
Dividends per share | $ 0.70 | $ 0.70 | $ 0.70

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