received from and paid on behalf of clients on a net basis within net increase in client funds obligations in the financing activities section of the Statements of Consolidated Cash Flows. Approximately 79% of the available-for-sale securities held a AAA or AA rating at June 30, 2019, as rated by Moody's, Standard & Poor's, DBRS for Canadian dollar denominated securities, and Fitch for asset-backed and commercial mortgage backed securities. All available-for-sale securities were rated as investment grade at June 30, 2019. Expected maturities of available-for-sale securities at June 30, 2019 are as follows: Property, plant and equipment at cost and accumulated depreciation at June 30, 2019 and 2018 are as follows: Depreciation of property, plant and equipment was $180.6 million, $173.1 million, and $147.3 million for fiscal 2019, 2018 and 2017, respectively. Changes in goodwill for the fiscal years ended June 30, 2019 and 2018 are as follows: NOTE 8. PROPERTY, PLANT AND EQUIPMENT NOTE 9. GOODWILL AND INTANGIBLE ASSETS, NET Employer Services PEO Services Total Balance at June 30, 2017 $ 1,736.2 $ 4.8 $ 1,741.0 Additions and other adjustments 494.9 — 494.9 Currency translation adjustments 7.6 — 7.6 Balance at June 30, 2018 $ 2,238.7 $ 4.8 $ 2,243.5 Additions and other adjustments 94.3 — 94.3 Currency translation adjustments (14.8) — (14.8) Balance at June 30, 2019 $ 2,318.2 $ 4.8 $ 2,323.0 June 30, 2019 2018 Property, plant and equipment: Land and buildings $ 781.2 $ 791.8 Data processing equipment 749.0 707.4 Furniture, leaseholds and other 651.6 637.1 2,181.8 2,136.3 Less: accumulated depreciation (1,417.6 ) (1,342.6 ) Property, plant and equipment, net $ 764.2 $ 793.7 One year or less $ 5,024.4 One year to two years 5,726.8 Two years to three years 4,362.6 Three years to four years 4,518.4 After four years 5,226.9 Total available-for-sale securities $ 24,859.1 68