| Date | Value |
|---|---|
| Dec 15, 2023 23:35 | 1510 ppm |
| Oct 20, 2023 15:40 | 1320 ppm |
| Jun 16, 2023 20:45 | 1150 ppm |
| May 5, 2023 20:27 | 1230 ppm |
| Nov 19, 2022 00:38 | 1280 ppm |
| Jul 29, 2022 20:12 | 1410 ppm |
| Feb 25, 2022 21:44 | 1410 ppm |
| Dec 3, 2021 19:41 | 1260 ppm |
| Sep 24, 2021 23:03 | 1200 ppm |
| Aug 26, 2021 21:39 | 1170 ppm |