| Date | Value |
|---|---|
| May 15, 2023 07:18 | 510 ppm |
| Apr 24, 2023 09:03 | 520 ppm |
| Apr 17, 2023 07:29 | 500 ppm |
| Apr 9, 2023 08:29 | 500 ppm |
| Feb 20, 2023 09:07 | 450 ppm |
| Dec 18, 2022 08:13 | 435 ppm |
| Dec 12, 2022 09:41 | 425 ppm |
| Nov 27, 2022 10:23 | 430 ppm |
| Nov 20, 2022 10:33 | 420 ppm |
| Nov 14, 2022 08:48 | 420 ppm |
| Nov 6, 2022 09:31 | 420 ppm |
| Nov 3, 2022 16:09 | 420 ppm |
| Oct 30, 2022 09:16 | 430 ppm |
| Oct 24, 2022 09:51 | 430 ppm |
| Oct 12, 2022 09:40 | 420 ppm |