| May-2019 | 2.0 | 11.4 |
| Apr-2019 | 2.8 | 9.4 |
| Mar-2019 | (.3) | 6.6 |
| Feb-2019 | (5.9) | 6.9 |
| Jan-2019 | (3.8) | 12.8 |
| Dec-2018 | (2.1) | 16.6 |
| Nov-2018 | (4.0) | 18.7 |
| Oct-2018 | (2.1) | 22.8 |
| Sep-2018 | 1.1 | 24.9 |
| Aug-2018 | 2.8 | 23.8 |
| Jul-2018 | 2.9 | 21.0 |
| Jun-2018 | 3.0 | 18.1 |
|
| May-2018 | 3.8 | 15.1 |
| Apr-2018 | 1.1 | 11.3 |
| Mar-2018 | (2.0) | 10.2 |
| Feb-2018 | (5.2) | 12.2 |
| Jan-2018 | (6.4) | 17.4 |
| Dec-2017 | (6.3) | 23.8 |
| Nov-2017 | (4.8) | 30.1 |
| Oct-2017 | 0.2 | 34.9 |
| Sep-2017 | 3.1 | 34.7 |
| Aug-2017 | 2.5 | 31.6 |
| Jul-2017 | 2.5 | 29.1 |
| Jun-2017 | 3.3 | 26.6 |
|