GTSPP Data Product Centre| Year & Month(yyyymm) | observing line | Number of observations |
|---|---|---|
| 201106 | PX45 | 39 |
| 201207 | PX45 | 41 |
| 201212 | PX45 | 19 |
| 201306 | PX45 | 37 |
| 201406 | PX45 | 46 |
| 201506 | PX45 | 40 |
| 201701 | PX45 | 40 |
| 201708 | PX45 | 41 |
| 201807 | PX45 | 34 |
| 201907 | PX45 | 32 |
| 202001 | PX45 | 29 |
| 202006 | PX45 | 42 |
| 202108 | PX45 | 17 |
| 202201 | PX45 | 41 |
| 202309 | PX45 | 25 |
| 202402 | PX45 | 41 |
| 201001 | PX46 | 34 |
| 201006 | PX46 | 57 |
| 201102 | PX46 | 20 |
| 201206 | PX46 | 39 |
| 201302 | PX46 | 15 |
| 201305 | PX46 | 16 |
| 201307 | PX46 | 41 |
| 201402 | PX46 | 20 |
| 201405 | PX46 | 13 |
| 201407 | PX46 | 48 |
| 201507 | PX46 | 48 |
| 201608 | PX46 | 48 |
| 201802 | PX46 | 12 |
| 201902 | PX46 | 8 |
| 201903 | PX46 | 10 |
| 202002 | PX46 | 13 |
| 202102 | PX46 | 19 |
| 202106 | PX46 | 26 |
| 202406 | PX46 | 18 |
| 202501 | PX46 | 37 |