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v3.7.0.1

Consolidated Statements of Cash Flows - USD ($) $ in Millions | 12 Months Ended
--- | ---
May 31, 2017 | May 31, 2016 | May 31, 2015
Operating activities |  |  |
Net income | $ 817.3 | $ 756.8 | $ 674.9
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization on property and equipment and intangible assets | 126.9 | 115.1 | 106.6
Amortization of premiums and discounts on available-for-sale securities | 72.5 | 75.7 | 76.2
Stock-based compensation costs | 35.4 | 34.6 | 31.4
Provision/(benefit) for deferred income taxes | 17.4 | 7.1 | (4.1)
Provision for allowance for doubtful accounts | 4.9 | 2.5 | 1.6
Net realized gains on sales of available-for-sale securities | (0.1) | (0.1) | (0.3)
Changes in operating assets and liabilities: |  |  |
Interest receivable | 0.2 | 1.8 | (1.6)
Accounts receivable | (103.7) | (37.5) | (28.2)
Prepaid expenses and other current assets | (34.1) | (5.0) | (8.5)
Accounts payable and other current liabilities | 39.1 | 63.3 | 51.1
Net change in other long-term assets and liabilities | (15.4) | 3.9 | (3.9)
Net cash provided by operating activities | 960.4 | 1,018.2 | 895.2
Investing activities |  |  |
Purchases of available-for-sale securities | (50,462.3) | (12,572.2) | (34,020.4)
Proceeds from sales and maturities of available-for-sale securities | 49,903.0 | 11,984.3 | 33,719.5
Net change in funds held for clients’ money market securities and other cash equivalents | 237.6 | 927.6 | 149.1
Purchases of property and equipment | (94.3) | (97.7) | (102.8)
Acquisition of businesses, net of cash acquired |  | (296.1) | (27.1)
Purchases of other assets | (8.6) | (9.0) | (3.3)
Net cash used in investing activities | (424.6) | (63.1) | (285.0)
Financing activities |  |  |
Net change in client fund obligations | 317.3 | (304.8) | 93.0
Dividends paid | (662.3) | (606.5) | (551.8)
Repurchases of common shares | (166.2) | (107.9) | (182.4)
Activity related to equity-based plans | 28.5 | 25.6 | 48.5
Net cash used in financing activities | (482.7) | (993.6) | (592.7)
Increase/(decrease) in cash and cash equivalents | 53.1 | (38.5) | 17.5
Cash and cash equivalents, beginning of fiscal year | 131.5 | 170.0 | 152.5
Cash and cash equivalents, end of fiscal year | $ 184.6 | $ 131.5 | $ 170.0

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