GTSPP Data Product Centre| Year & Month(yyyymm) | observing line | Number of observations |
|---|---|---|
| 201610 | PX11 | 34 |
| 201612 | PX11 | 43 |
| 201701 | PX11 | 18 |
| 201703 | PX11 | 13 |
| 201706 | PX11 | 44 |
| 201707 | PX11 | 13 |
| 201708 | PX11 | 24 |
| 201709 | PX11 | 25 |
| 201710 | PX11 | 28 |
| 201712 | PX11 | 29 |
| 201801 | PX11 | 27 |
| 201802 | PX11 | 12 |
| 201806 | PX11 | 40 |
| 201807 | PX11 | 20 |
| 201808 | PX11 | 26 |
| 201810 | PX11 | 25 |
| 201811 | PX11 | 14 |
| 201903 | PX11 | 10 |
| 201904 | PX11 | 13 |
| 201906 | PX11 | 45 |
| 201908 | PX11 | 20 |
| 201910 | PX11 | 15 |
| 201911 | PX11 | 31 |
| 201912 | PX11 | 18 |
| 202001 | PX11 | 28 |
| 202002 | PX11 | 36 |
| 202003 | PX11 | 13 |
| 202006 | PX11 | 15 |
| 202007 | PX11 | 58 |
| 202008 | PX11 | 36 |
| 202009 | PX11 | 14 |
| 202010 | PX11 | 23 |
| 202012 | PX11 | 13 |
| 202102 | PX11 | 18 |
| 202103 | PX11 | 16 |
| 202104 | PX11 | 19 |
| 202105 | PX11 | 20 |
| 202106 | PX11 | 22 |
| 202107 | PX11 | 28 |
| 202108 | PX11 | 23 |
| 202109 | PX11 | 9 |
| 202110 | PX11 | 14 |
| 202111 | PX11 | 11 |
| 202209 | PX11 | 34 |
| 202210 | PX11 | 24 |
| 202211 | PX11 | 41 |
| 202212 | PX11 | 15 |
| 202301 | PX11 | 18 |
| 202302 | PX11 | 13 |
| 202303 | PX11 | 23 |
| 202304 | PX11 | 22 |
| 202305 | PX11 | 26 |
| 202307 | PX11 | 12 |
| 202308 | PX11 | 12 |
| 202309 | PX11 | 10 |
| 202310 | PX11 | 36 |
| 202312 | PX11 | 11 |
| 202401 | PX11 | 13 |