GTSPP Data Product Centre| Year & Month(yyyymm) | observing line | Number of observations |
|---|---|---|
| 201001 | PX45 | 41 |
| 201005 | PX45 | 18 |
| 201007 | PX45 | 74 |
| 201101 | PX45 | 40 |
| 201112 | PX45 | 19 |
| 201201 | PX45 | 44 |
| 201204 | PX45 | 19 |
| 201301 | PX45 | 39 |
| 201401 | PX45 | 41 |
| 201501 | PX45 | 40 |
| 201601 | PX45 | 41 |
| 201607 | PX45 | 74 |
| 201801 | PX45 | 40 |
| 201901 | PX45 | 40 |
| 202101 | PX45 | 41 |
| 202208 | PX45 | 37 |
| 202210 | PX45 | 32 |
| 202301 | PX45 | 35 |
| 201106 | PX46 | 96 |
| 201206 | PX46 | 15 |
| 201506 | PX46 | 16 |
| 201707 | PX46 | 20 |
| 201807 | PX46 | 12 |
| 201808 | PX46 | 40 |
| 201809 | PX46 | 30 |
| 201905 | PX46 | 17 |
| 201908 | PX46 | 45 |
| 202008 | PX46 | 26 |
| 202204 | PX46 | 15 |