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Capital Management and Dividends (Tables) | 12 Months Ended
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Mar. 31, 2020
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Summary of Dividends Declared or Paid | The following table summarizes the dividends declared or paid during the fiscal years 2020, 2019 and 2018:
(Millions of US dollars) | US Cents/Security |  | US$ Millions Total Amount |  | Announcement Date |  | Record Date |  | Payment Date
FY 2020 first half dividend 1 | 0.10 |  | 44.7 |  | 7 November 2019 |  | 18 November 2019 |  | 20 December 2019
FY 2019 second half dividend | 0.26 |  | 113.9 |  | 21 May 2019 |  | 6 June 2019 |  | 2 August 2019
FY 2019 first half dividend | 0.10 |  | 43.6 |  | 8 November 2018 |  | 12 December 2018 |  | 22 February 2019
FY 2018 second half dividend | 0.30 |  | 128.5 |  | 22 May 2018 |  | 7 June 2018 |  | 3 August 2018
FY 2018 first half dividend | 0.10 |  | 46.2 |  | 9 November 2017 |  | 13 December 2017 |  | 23 February 2018
FY 2017 second half dividend | 0.28 |  | 131.3 |  | 18 May 2017 |  | 8 June 2017 |  | 4 August 2017
1 Includes US$2.8 million of withholding taxes paid on 10 January 2020

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