| $0.9528 | 3.7803% | 17 June 2019 to 16 September 2019 | 17 September 2019 |
| $1.0358 | 4.1545% | 18 March 2019 to 16 June 2019 | 17 June 2019 |
| $1.0681 | 4.2840% | 17 December 2018 to 17 March 2019 | 18 March 2019 |
| $1.0512 | 4.2164% | 17 September 2018 to 16 December 2018 | 17 December 2018 |
| $1.0751 | 4.3124% | 18 June 2018 to 16 September 2018 | 17 September 2018 |
| $1.0585 | 4.2455% | 19 March 2018 to 17 June 2018 | 18 June 2018 |
| $1.0262 | 4.1160% | 18 December 2017 to 18 March 2018 | 19 March 2018 |
| $1.0157 | 4.0740% | 18 September 2017 to 17 December 2017 | 18 December 2017 |
| $1.5219 | 4.1000% | 5 May 2017 to 17 September 2017 | 18 September 2017 |
