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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: 

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## NOTE 8. PROPERTY, PLANT AND EQUIPMENT 

Property, plant and equipment at cost and accumulated depreciation at June 30, 2019 and 2018 are as follows: 

<img src='content_image/1020069.jpg'>

Depreciation of property, plant and equipment was $180.6 million, $173.1 million, and $147.3 million for fiscal 2019, 2018 and 2017, respectively. 

## NOTE 9. GOODWILL AND INTANGIBLE ASSETS, NET 

Changes in goodwill for the fiscal years ended June 30, 2019 and 2018 are as follows: 

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