An active day is when any amount of data is received from that station.
| Identifier | Jun 06 | Jul 06 | Aug 06 | Sep 06 | Oct 06 | Nov 06 | Dec 06 | Jan 07 | Feb 07 | Mar 07 | Apr 07 | May 07 | Jun 07 | Jul 07 | Aug 07 | Sep 07 | Oct 07 | Nov 07 | Dec 07 | Jan 08 | Feb 08 | Mar 08 | Apr 08 | May 08 |
| CW0272 | 30 | 31 | 31 | 30 | 31 | 30 | 30 | 29 | 28 | 29 | 30 | 26 | 28 | 31 | 31 | 30 | 29 | 30 | 31 | 31 | 29 | 31 | 11 | 3 |
| CW0605 | 29 | 31 | 31 | 29 | 30 | 30 | 31 | 31 | 25 | 28 | 30 | 31 | 30 | 31 | 27 | 28 | 24 | 14 | 13 | 6 | 28 | 31 | 30 | 31 |
| CW1217 | 30 | 29 | 31 | 30 | 30 | 30 | 27 | 29 | 24 | 26 | 9 | 29 | 30 | 30 | 30 | 30 | 27 | 28 | 26 | 31 | 29 | 31 | 30 | 29 |
| CW1300 | 26 | 31 | 31 | 30 | 31 | 21 | 30 | 29 | 28 | 29 | 26 | 29 | 29 | 31 | 31 | 29 | 28 | 30 | 31 | 14 | 1 | 0 | 0 | 0 |
| CW1525 | 30 | 21 | 29 | 30 | 29 | 30 | 30 | 29 | 28 | 31 | 29 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| CW1831 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 20 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 13 | 29 | 31 | 25 | 9 |
| CW1834 | 30 | 31 | 31 | 30 | 31 | 27 | 31 | 26 | 28 | 28 | 29 | 25 | 27 | 24 | 29 | 30 | 27 | 29 | 27 | 30 | 26 | 30 | 27 | 31 |
| CW1839 | 30 | 31 | 31 | 30 | 31 | 30 | 29 | 27 | 28 | 29 | 30 | 29 | 29 | 31 | 29 | 30 | 29 | 30 | 31 | 31 | 29 | 31 | 11 | 3 |
| CW2103 | 30 | 31 | 31 | 30 | 30 | 30 | 31 | 30 | 28 | 31 | 30 | 29 | 29 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| CW3284 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 24 | 31 | 0 | 27 |
| CW3565 | 29 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 28 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| CW3645 | 30 | 25 | 20 | 30 | 31 | 24 | 0 | 19 | 28 | 19 | 25 | 31 | 30 | 31 | 31 | 30 | 22 | 29 | 31 | 31 | 19 | 31 | 15 | 0 |
| CW4179 | 30 | 31 | 4 | 28 | 31 | 27 | 23 | 31 | 28 | 31 | 29 | 31 | 30 | 30 | 19 | 30 | 31 | 30 | 30 | 27 | 29 | 30 | 27 | 30 |
| CW4316 | 11 | 17 | 24 | 30 | 31 | 30 | 30 | 31 | 28 | 30 | 30 | 31 | 30 | 23 | 28 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| CW4325 | 30 | 31 | 22 | 30 | 30 | 30 | 30 | 23 | 28 | 31 | 27 | 31 | 30 | 30 | 23 | 30 | 30 | 29 | 30 | 30 | 29 | 31 | 30 | 31 |
| CW4352 | 29 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 25 | 0 | 0 | 21 | 30 | 31 | 29 | 31 | 31 | 29 | 31 | 30 | 31 |
| CW4456 | 30 | 4 | 0 | 0 | 0 | 0 | 29 | 26 | 23 | 29 | 25 | 30 | 30 | 31 | 31 | 30 | 30 | 26 | 25 | 9 | 25 | 31 | 13 | 3 |
| CW4688 | 29 | 31 | 28 | 30 | 30 | 30 | 31 | 30 | 27 | 5 | 16 | 19 | 3 | 10 | 7 | 13 | 20 | 8 | 21 | 1 | 0 | 1 | 11 | 0 |
| CW4742 | 30 | 28 | 31 | 27 | 23 | 23 | 25 | 29 | 24 | 29 | 30 | 27 | 29 | 27 | 31 | 11 | 21 | 26 | 26 | 29 | 14 | 31 | 30 | 31 |
| CW5410 | 5 | 0 | 0 | 18 | 16 | 12 | 31 | 31 | 28 | 28 | 27 | 24 | 0 | 10 | 29 | 28 | 28 | 30 | 31 | 31 | 29 | 31 | 0 | 5 |
| CW5515 | 30 | 31 | 31 | 30 | 31 | 28 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 12 | 29 | 29 | 30 | 31 | 30 | 29 | 31 | 30 | 30 |
| CW5559 | 27 | 31 | 31 | 21 | 31 | 30 | 30 | 29 | 27 | 29 | 29 | 26 | 25 | 31 | 30 | 22 | 27 | 27 | 31 | 30 | 29 | 21 | 10 | 0 |
| CW5875 | 23 | 29 | 27 | 27 | 29 | 29 | 30 | 30 | 24 | 25 | 17 | 17 | 15 | 13 | 8 | 15 | 9 | 9 | 10 | 14 | 5 | 7 | 2 | 0 |
| CW6134 | 3 | 4 | 5 | 0 | 0 | 0 | 0 | 25 | 18 | 19 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| CW6235 | 0 | 7 | 3 | 17 | 30 | 30 | 30 | 26 | 28 | 23 | 29 | 23 | 15 | 21 | 9 | 12 | 25 | 23 | 27 | 14 | 14 | 20 | 7 | 3 |
| CW6285 | 0 | 1 | 1 | 9 | 31 | 30 | 25 | 15 | 28 | 25 | 26 | 31 | 30 | 31 | 23 | 28 | 24 | 25 | 30 | 27 | 29 | 31 | 11 | 3 |
| CW6538 | 0 | 0 | 0 | 19 | 28 | 30 | 31 | 30 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| CW6986 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 15 | 28 | 31 | 30 | 14 | 30 | 30 | 31 | 30 | 30 | 29 | 22 | 31 | 27 | 9 | 30 | 31 |
| CW7325 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 4 | 9 | 1 | 3 | 4 | 1 | 2 | 6 | 3 | 4 | 10 | 6 | 2 | 5 | 1 | 0 |
| CW7356 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 16 | 30 | 27 | 29 | 24 | 29 | 16 | 29 | 31 | 26 | 13 | 0 | 0 | 0 | 0 | 0 |
| CW7731 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 30 | 31 | 30 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 30 | 31 |
| CW7783 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 29 | 30 | 30 | 27 | 19 | 27 | 31 | 27 | 21 | 31 | 26 | 16 | 4 | 4 |
| CW7872 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 31 | 26 | 14 | 18 | 15 | 31 | 28 | 31 | 31 | 29 | 31 | 26 | 31 |
| CW7963 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 29 | 29 | 31 | 31 | 30 | 29 | 30 | 31 | 31 | 29 | 31 | 11 | 3 |
| CW7973 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 4 | 0 | 0 |
| CW8015 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 29 | 31 | 26 | 28 | 31 | 17 | 0 | 0 | 0 | 0 | 0 | 0 |
| CW8053 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 22 | 5 | 1 | 15 | 14 | 5 | 6 | 11 | 26 | 12 | 15 | 31 |
| CW8116 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 21 | 26 | 18 | 30 | 31 | 30 | 28 | 31 | 29 | 31 | 30 | 28 |
| CW8415 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 29 | 30 | 9 | 0 | 14 | 31 | 28 | 31 | 30 | 31 |
| CW8678 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 31 | 30 | 31 | 18 | 5 | 31 | 29 | 31 |
| CW8719 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 31 | 30 | 29 | 31 | 29 | 30 | 29 | 26 |
| CW8783 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| CW8797 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 2 | 0 | 0 | 0 | 0 | 6 | 11 | 0 |
| CW8848 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 24 | 29 | 31 | 24 | 30 | 25 | 29 |
| CW8971 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 30 | 31 | 31 | 28 | 30 | 30 | 30 |
| CW9029 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 31 | 31 | 17 | 24 | 30 | 31 |
| CW9099 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 31 | 31 | 29 | 30 | 30 | 31 |
| CW9259 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 31 | 29 | 31 | 30 | 31 |
| CW9384 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 31 | 29 | 31 | 0 | 31 |
| CW9398 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 31 | 26 | 31 | 30 | 27 |
| CW9438 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 24 | 31 | 30 | 31 |
| CW9487 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 29 | 31 | 30 | 28 |
| CW9533 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 30 |
| CW9534 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 28 | 31 | 30 | 29 |
| CW9680 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 29 | 31 | 30 | 24 |
| CW9759 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
| CW9972 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 6 | 0 | 0 |
| CW9973 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 |
| CW9977 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 4 | 1 | 2 |
| DW0038 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 31 | 30 | 31 |
| DW0085 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 |
| DW0238 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 13 | 0 |
| DW0594 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 |
| DW0597 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 |
| I3OVD | 27 | 26 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 27 | 24 | 31 | 30 | 31 | 30 | 31 | 28 | 26 | 30 | 30 | 31 |
| I3VZB-3 | 30 | 31 | 31 | 27 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 16 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| I4GOS-3 | 10 | 29 | 31 | 30 | 31 | 30 | 31 | 30 | 28 | 31 | 30 | 30 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| I5NOD | 30 | 31 | 17 | 30 | 31 | 29 | 31 | 28 | 24 | 31 | 30 | 31 | 29 | 31 | 13 | 27 | 29 | 27 | 31 | 31 | 29 | 30 | 27 | 31 |
| IK1ZQJ | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 27 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 27 | 22 | 31 | 30 | 29 | 31 | 6 | 0 |
| IK1ZXB | 12 | 31 | 12 | 30 | 31 | 30 | 25 | 25 | 28 | 31 | 30 | 31 | 30 | 31 | 23 | 30 | 31 | 30 | 25 | 23 | 29 | 31 | 30 | 31 |
| IK1ZYQ | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 27 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 30 | 0 | 15 |
| IK2CHZ | 28 | 31 | 27 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 27 | 23 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| IK2CMN | 0 | 7 | 6 | 7 | 7 | 5 | 12 | 8 | 5 | 7 | 6 | 3 | 8 | 8 | 3 | 7 | 4 | 5 | 9 | 8 | 5 | 10 | 5 | 8 |
| IK2JYT-3 | 0 | 31 | 31 | 30 | 31 | 30 | 28 | 31 | 27 | 29 | 28 | 29 | 29 | 31 | 31 | 30 | 29 | 30 | 31 | 30 | 29 | 30 | 26 | 17 |
| IK3SVW-3 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 30 | 27 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| IK4UPW | 30 | 31 | 31 | 30 | 29 | 28 | 31 | 31 | 28 | 30 | 30 | 31 | 30 | 24 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 |
| IK8ERL-2 | 30 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 31 | 30 | 31 | 30 | 29 | 31 | 30 | 31 |
| IR3CV | 28 | 26 | 31 | 29 | 28 | 30 | 31 | 30 | 28 | 31 | 30 | 26 | 28 | 31 | 29 | 30 | 31 | 29 | 31 | 31 | 29 | 31 | 29 | 31 |
| IT9IPQ-2 | 30 | 31 | 31 | 30 | 31 | 30 | 30 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
| IT9OBK | 30 | 20 | 28 | 30 | 28 | 30 | 31 | 30 | 28 | 28 | 25 | 27 | 17 | 26 | 31 | 30 | 31 | 30 | 31 | 31 | 24 | 30 | 15 | 31 |
| IT9UCS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 28 | 31 | 30 | 31 | 30 | 24 | 27 | 20 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 30 |
| IW0DEG | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 30 | 28 | 26 | 26 | 30 | 25 | 23 | 27 | 30 | 31 | 31 | 29 | 30 | 10 | 29 |
| IW1PPB | 0 | 0 | 3 | 30 | 25 | 30 | 31 | 31 | 28 | 31 | 30 | 23 | 30 | 31 | 31 | 30 | 31 | 30 | 13 | 1 | 0 | 0 | 0 | 0 |
| IW3IOY-2 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 30 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 30 | 31 | 29 | 29 | 30 | 31 |
| IW4APJ-3 | 30 | 31 | 31 | 30 | 31 | 30 | 30 | 31 | 27 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 28 | 31 | 4 | 0 | 0 | 0 | 0 |
| IW4BMA | 22 | 18 | 8 | 8 | 14 | 9 | 21 | 10 | 21 | 19 | 11 | 8 | 10 | 12 | 11 | 21 | 13 | 25 | 26 | 27 | 20 | 27 | 30 | 14 |
| IW5AKT-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 30 | 30 |
| IW5BFZ | 30 | 27 | 28 | 24 | 21 | 25 | 30 | 31 | 28 | 30 | 9 | 4 | 9 | 1 | 5 | 26 | 28 | 12 | 31 | 18 | 15 | 31 | 30 | 30 |
| IW8PCP-2 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 22 | 31 | 31 | 29 | 31 | 30 | 31 |
| IW9ETI-2 | 19 | 21 | 2 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 25 | 31 | 30 | 31 |
| IX1ESM | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 31 | 30 | 31 | 30 | 25 | 1 | 5 | 2 | 0 | 0 |
| IZ5BYH | 0 | 0 | 0 | 0 | 0 | 15 | 31 | 28 | 25 | 23 | 0 | 17 | 29 | 21 | 7 | 29 | 29 | 22 | 27 | 29 | 28 | 30 | 25 | 28 |
| IZ8GMP-2 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 30 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 31 |
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