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CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 28, 2018 | Feb. 28, 2017 | Feb. 28, 2018 | Feb. 28, 2017
Revenues: |  |  |  |
Net warehouse club sales | $ 816,573 | $ 772,273 | $ 1,561,974 | $ 1,488,352
Export sales | 9,138 | 8,172 | 17,285 | 18,906
Membership income | 12,703 | 11,833 | 25,078 | 23,543
Other income | 1,149 | 1,018 | 2,298 | 2,067
Total revenues | 839,563 | 793,296 | 1,606,635 | 1,532,868
Cost of goods sold: |  |  |  |
Net warehouse club | 699,355 | 659,802 | 1,336,591 | 1,268,292
Export | 8,685 | 7,761 | 16,434 | 17,942
Selling, general and administrative: |  |  |  |
Warehouse club operations | 71,951 | 67,784 | 141,453 | 133,210
General and administrative | 20,258 | 18,212 | 39,088 | 35,014
Pre-opening expenses | 81 |  | 511 | (113)
Asset impairment | 1,929 |  | 1,929 |
Loss/(gain) on disposal of assets | 40 | 335 | 199 | 742
Total operating expenses | 802,299 | 753,894 | 1,536,205 | 1,455,087
Operating income | 37,264 | 39,402 | 70,430 | 77,781
Other income (expense): |  |  |  |
Interest income | 368 | 549 | 768 | 1,051
Interest expense | (992) | (1,644) | (2,247) | (3,298)
Other income (expense), net | 210 | 915 | 488 | (13)
Total other income (expense) | (414) | (180) | (991) | (2,260)
Income before provision for income taxes and income (loss) of unconsolidated affiliates | 36,850 | 39,222 | 69,439 | 75,521
Provision for income taxes | (22,707) | (11,989) | (32,822) | (23,426)
Income (loss) of unconsolidated affiliates | 5 | (14) | 21 | (7)
Net income | $ 14,148 | $ 27,219 | $ 36,638 | $ 52,088
Net income per share available for distribution: |  |  |  |
Basic net income per share | $ 0.47 | $ 0.90 | $ 1.21 | $ 1.72
Diluted net income per share | $ 0.47 | $ 0.90 | $ 1.21 | $ 1.72
Shares used in per share computations: |  |  |  |
Basic | 30,100 | 30,004 | 30,089 | 29,993
Diluted | 30,100 | 30,008 | 30,090 | 29,997
Dividends per share | $ 0.70 | $ 0.70 | $ 0.70 | $ 0.70

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