| date,value | |
| 2015-01-01,289200.0 | |
| 2015-04-01,289100.0 | |
| 2015-07-01,295800.0 | |
| 2015-10-01,302500.0 | |
| 2016-01-01,299800.0 | |
| 2016-04-01,306000.0 | |
| 2016-07-01,303800.0 | |
| 2016-10-01,310900.0 | |
| 2017-01-01,313100.0 | |
| 2017-04-01,318200.0 | |
| 2017-07-01,320500.0 | |
| 2017-10-01,337900.0 | |
| 2018-01-01,331800.0 | |
| 2018-04-01,315600.0 | |
| 2018-07-01,330900.0 | |
| 2018-10-01,322800.0 | |
| 2019-01-01,313000.0 | |
| 2019-04-01,322500.0 | |
| 2019-07-01,318400.0 | |
| 2019-10-01,327100.0 | |
| 2020-01-01,329000.0 | |
| 2020-04-01,317100.0 | |
| 2020-07-01,327900.0 | |
| 2020-10-01,338600.0 | |
| 2021-01-01,355000.0 | |
| 2021-04-01,367800.0 | |
| 2021-07-01,395200.0 | |
| 2021-10-01,414000.0 | |
| 2022-01-01,413500.0 | |
| 2022-04-01,437700.0 | |
| 2022-07-01,438000.0 | |
| 2022-10-01,442600.0 | |
| 2023-01-01,429000.0 | |
| 2023-04-01,418500.0 | |
| 2023-07-01,435400.0 | |
| 2023-10-01,423200.0 | |
| 2024-01-01,426800.0 | |
| 2024-04-01,414500.0 | |
| 2024-07-01,415300.0 | |
| 2024-10-01,419300.0 | |
| 2025-01-01,423100.0 | |
| 2025-04-01,416100.0 | |
| 2025-07-01,410100.0 | |
| 2025-10-01,405300.0 | |