An active day is when any amount of data is received from that station.
| Identifier | Jul 08 | Aug 08 | Sep 08 | Oct 08 | Nov 08 | Dec 08 | Jan 09 | Feb 09 | Mar 09 | Apr 09 | May 09 | Jun 09 | Jul 09 | Aug 09 | Sep 09 | Oct 09 | Nov 09 | Dec 09 | Jan 10 | Feb 10 | Mar 10 | Apr 10 | May 10 | Jun 10 |
| CW5822 | 31 | 31 | 30 | 31 | 30 | 31 | 30 | 25 | 0 | 0 | 0 | 15 | 31 | 29 | 29 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 29 | 30 |
| CW7313 | 22 | 18 | 27 | 30 | 30 | 31 | 29 | 27 | 31 | 24 | 26 | 28 | 22 | 14 | 29 | 30 | 30 | 31 | 31 | 26 | 30 | 30 | 29 | 25 |
| CW7494 | 30 | 30 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| CW7977 | 31 | 28 | 30 | 30 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 29 | 30 | 31 | 30 |
| CW8081 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| CW9535 | 31 | 29 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 28 | 29 | 31 | 30 | 30 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW0139 | 31 | 5 | 29 | 30 | 30 | 31 | 31 | 28 | 31 | 22 | 14 | 23 | 31 | 31 | 30 | 24 | 30 | 31 | 31 | 28 | 31 | 11 | 31 | 30 |
| DW0215 | 30 | 31 | 30 | 26 | 29 | 31 | 31 | 28 | 31 | 30 | 31 | 18 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW0494 | 31 | 31 | 29 | 31 | 30 | 31 | 30 | 28 | 25 | 30 | 31 | 20 | 0 | 0 | 0 | 0 | 0 | 8 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW0943 | 11 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW1731 | 0 | 0 | 0 | 0 | 0 | 28 | 31 | 26 | 31 | 30 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 28 | 10 | 12 | 30 | 30 |
| DW1948 | 0 | 0 | 0 | 0 | 0 | 4 | 31 | 26 | 31 | 30 | 31 | 30 | 31 | 30 | 29 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW2107 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 15 | 13 | 24 | 24 | 25 | 30 | 31 | 21 | 25 | 11 | 26 | 19 | 15 | 10 | 3 | 4 | 11 |
| DW2373 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 12 | 26 | 31 | 30 | 23 | 29 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 27 | 30 |
| DW3109 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW3554 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 31 | 27 | 31 | 31 | 28 | 31 | 30 | 31 | 11 |
| DW3649 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 28 | 31 | 31 | 28 | 23 | 27 | 31 | 30 |
| DW4105 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW4255 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 28 | 17 | 23 | 31 | 30 |
| DW4445 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 17 | 2 | 3 | 0 | 7 |
| DW4467 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 31 | 27 | 27 | 30 |
| DW4782 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 30 | 31 | 30 |
| SV0XAW | 2 | 2 | 0 | 2 | 0 | 11 | 4 | 11 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SV1CIF-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SV1DAY | 2 | 31 | 30 | 11 | 3 | 23 | 21 | 28 | 31 | 26 | 20 | 30 | 31 | 31 | 24 | 31 | 30 | 31 | 31 | 25 | 31 | 9 | 23 | 23 |
| SV1EYY-2 | 17 | 5 | 23 | 16 | 29 | 28 | 29 | 24 | 19 | 30 | 24 | 27 | 28 | 26 | 0 | 1 | 0 | 8 | 14 | 16 | 2 | 0 | 0 | 0 |
| SV1LH-1 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 30 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| SV2BBO-2 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 29 | 28 | 21 | 31 | 31 | 30 | 31 | 30 | 19 | 21 | 28 | 4 | 0 | 0 | 0 |
| SV2BNL-2 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 23 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| SV2BNL-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| SV2BZQ-1 | 0 | 0 | 10 | 21 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 19 | 22 | 31 | 27 | 30 | 24 |
| SV2BZQ-2 | 21 | 18 | 30 | 31 | 30 | 31 | 28 | 28 | 31 | 30 | 31 | 30 | 31 | 12 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 26 |
| SV2BZQ-3 | 31 | 31 | 30 | 31 | 30 | 31 | 23 | 28 | 31 | 30 | 29 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 24 | 31 | 4 | 0 | 0 |
| SV2CPH-2 | 31 | 31 | 30 | 31 | 30 | 16 | 12 | 24 | 6 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SV2CSV-2 | 31 | 31 | 14 | 14 | 25 | 30 | 27 | 27 | 31 | 27 | 30 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SV2ESB-2 | 31 | 29 | 27 | 31 | 27 | 31 | 29 | 28 | 30 | 29 | 30 | 25 | 29 | 27 | 28 | 31 | 30 | 31 | 31 | 26 | 24 | 30 | 29 | 30 |
| SV2HRT-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 26 | 31 | 31 | 23 | 27 | 5 | 1 | 0 |
| SV3AQN-2 | 31 | 31 | 20 | 10 | 30 | 29 | 18 | 27 | 30 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 29 | 31 | 7 | 1 | 2 | 0 | 0 | 0 |
| SV3BEF-2 | 29 | 31 | 29 | 22 | 0 | 7 | 30 | 23 | 30 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 29 | 30 | 27 | 30 | 30 | 31 | 30 |
| SV3BEF-4 | 31 | 31 | 30 | 29 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 29 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| SV4BHA-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SV6GMQ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 19 | 28 | 31 | 30 | 31 | 30 |
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