| Date | Value |
|---|---|
| Oct 1, 2024 22:41 | 445 ppm |
| Aug 20, 2024 22:53 | 455 ppm |
| Jul 9, 2024 22:15 | 440 ppm |
| Apr 17, 2024 00:46 | 430 ppm |
| Mar 6, 2024 00:51 | 415 ppm |
| Dec 12, 2023 23:50 | 430 ppm |
| Nov 22, 2023 00:17 | 420 ppm |
| Sep 19, 2023 23:01 | 420 ppm |
| Apr 25, 2023 23:48 | 430 ppm |
| Mar 2, 2023 00:17 | 400 ppm |