| date,value | |
| 2015-01-01,1.52 | |
| 2015-04-01,1.525 | |
| 2015-07-01,1.519 | |
| 2015-10-01,1.498 | |
| 2016-01-01,1.471 | |
| 2016-04-01,1.462 | |
| 2016-07-01,1.455 | |
| 2016-10-01,1.447 | |
| 2017-01-01,1.44 | |
| 2017-04-01,1.434 | |
| 2017-07-01,1.438 | |
| 2017-10-01,1.448 | |
| 2018-01-01,1.457 | |
| 2018-04-01,1.461 | |
| 2018-07-01,1.463 | |
| 2018-10-01,1.462 | |
| 2019-01-01,1.455 | |
| 2019-04-01,1.456 | |
| 2019-07-01,1.451 | |
| 2019-10-01,1.436 | |
| 2020-01-01,1.39 | |
| 2020-04-01,1.126 | |
| 2020-07-01,1.176 | |
| 2020-10-01,1.165 | |
| 2021-01-01,1.155 | |
| 2021-04-01,1.15 | |
| 2021-07-01,1.152 | |
| 2021-10-01,1.163 | |
| 2022-01-01,1.162 | |
| 2022-04-01,1.191 | |
| 2022-07-01,1.219 | |
| 2022-10-01,1.252 | |
| 2023-01-01,1.286 | |
| 2023-04-01,1.324 | |
| 2023-07-01,1.352 | |
| 2023-10-01,1.37 | |
| 2024-01-01,1.373 | |
| 2024-04-01,1.387 | |
| 2024-07-01,1.393 | |
| 2024-10-01,1.392 | |
| 2025-01-01,1.39 | |
| 2025-04-01,1.395 | |
| 2025-07-01,1.408 | |
| 2025-10-01,1.409 | |