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 |
| CW0835 | 2 | 0 | 0 | 0 | 0 | 7 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 29 | 30 | 31 | 31 | 28 | 28 | 29 | 24 | 21 |
| CW1292 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 28 | 31 | 29 | 7 | 30 | 31 | 31 | 30 | 30 | 30 | 31 | 28 | 10 | 31 | 30 | 31 | 30 |
| CW2075 | 29 | 31 | 30 | 27 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| CW2275 | 31 | 31 | 30 | 31 | 30 | 30 | 31 | 28 | 31 | 30 | 31 | 30 | 27 | 31 | 30 | 28 | 24 | 30 | 31 | 28 | 31 | 29 | 30 | 29 |
| CW3074 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 30 | 30 | 27 | 30 | 19 | 31 | 27 | 30 | 31 | 28 | 31 | 21 | 0 | 28 |
| CW3514 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 21 | 30 | 31 | 30 | 30 | 31 | 28 | 31 | 30 | 31 | 30 |
| CW3524 | 7 | 0 | 0 | 0 | 0 | 23 | 31 | 28 | 31 | 15 | 27 | 30 | 27 | 31 | 30 | 31 | 28 | 31 | 31 | 28 | 31 | 30 | 24 | 23 |
| CW4848 | 19 | 0 | 0 | 4 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| CW5329 | 30 | 20 | 30 | 31 | 30 | 24 | 28 | 25 | 31 | 28 | 4 | 0 | 0 | 25 | 30 | 30 | 30 | 25 | 31 | 26 | 31 | 30 | 31 | 30 |
| CW5339 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 25 | 30 | 24 | 30 |
| CW5795 | 31 | 31 | 30 | 31 | 25 | 23 | 15 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 16 | 31 | 26 | 6 | 30 | 28 | 31 | 30 | 31 | 24 |
| CW5839 | 19 | 0 | 0 | 0 | 3 | 30 | 31 | 26 | 31 | 29 | 31 | 27 | 31 | 31 | 30 | 5 | 0 | 11 | 31 | 28 | 31 | 30 | 31 | 30 |
| CW7300 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| CW8045 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 29 |
| CW8144 | 31 | 31 | 30 | 29 | 19 | 0 | 5 | 7 | 19 | 29 | 31 | 30 | 31 | 31 | 30 | 14 | 18 | 30 | 31 | 28 | 31 | 30 | 31 | 30 |
| CW8233 | 31 | 30 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 26 | 8 | 3 | 0 | 15 | 28 | 31 | 29 | 31 | 30 |
| CW8425 | 29 | 29 | 28 | 26 | 20 | 31 | 29 | 27 | 28 | 29 | 27 | 30 | 31 | 28 | 29 | 23 | 28 | 30 | 31 | 28 | 28 | 19 | 27 | 30 |
| CW9060 | 15 | 31 | 30 | 30 | 26 | 31 | 31 | 28 | 31 | 30 | 30 | 30 | 17 | 30 | 30 | 31 | 30 | 31 | 31 | 27 | 31 | 30 | 31 | 30 |
| CW9174 | 31 | 12 | 30 | 31 | 15 | 31 | 31 | 28 | 31 | 30 | 28 | 30 | 31 | 23 | 25 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 28 | 30 |
| DW0155 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 30 | 23 | 30 | 29 | 3 | 23 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW0311 | 0 | 0 | 0 | 0 | 0 | 3 | 7 | 0 | 0 | 1 | 14 | 9 | 0 | 4 | 0 | 4 | 10 | 15 | 8 | 6 | 4 | 6 | 9 | 2 |
| DW0610 | 31 | 14 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 29 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW0969 | 10 | 31 | 23 | 30 | 30 | 31 | 30 | 28 | 31 | 21 | 21 | 30 | 31 | 28 | 22 | 31 | 30 | 31 | 31 | 24 | 31 | 25 | 23 | 29 |
| DW1089 | 0 | 25 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW1112 | 0 | 21 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 29 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 25 | 31 | 27 | 31 | 30 | 31 | 30 |
| DW1138 | 0 | 17 | 28 | 28 | 30 | 31 | 30 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW1227 | 0 | 0 | 0 | 28 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW1329 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW1353 | 0 | 0 | 16 | 31 | 24 | 31 | 24 | 26 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 27 | 28 | 31 | 30 | 23 | 30 |
| DW1577 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 15 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 27 | 0 |
| DW1638 | 0 | 0 | 0 | 0 | 27 | 31 | 29 | 28 | 31 | 27 | 31 | 29 | 28 | 30 | 28 | 29 | 12 | 31 | 11 | 27 | 13 | 20 | 29 | 26 |
| DW1743 | 0 | 0 | 0 | 0 | 7 | 31 | 31 | 26 | 18 | 6 | 8 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW1773 | 0 | 0 | 0 | 0 | 0 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 22 | 0 | 7 | 24 | 22 | 18 | 24 | 10 |
| DW1828 | 0 | 0 | 0 | 0 | 0 | 25 | 19 | 26 | 30 | 30 | 26 | 27 | 25 | 27 | 20 | 9 | 30 | 30 | 25 | 28 | 31 | 30 | 31 | 23 |
| DW1894 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 28 | 31 | 30 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 30 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW2171 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 25 | 0 | 1 | 22 | 17 | 22 | 13 | 23 | 30 | 25 | 25 | 17 | 17 | 20 | 13 | 12 | 11 |
| DW2302 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 30 | 30 | 31 | 30 | 31 | 31 | 23 | 31 | 30 | 31 | 31 | 28 | 24 | 30 | 31 | 30 |
| DW2717 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 30 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 30 | 30 | 31 | 30 |
| DW2731 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW2776 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 29 | 20 | 4 | 29 | 24 | 27 | 16 | 16 | 31 | 28 | 29 | 30 | 27 | 30 |
| DW2795 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 29 | 31 | 12 | 5 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 29 | 30 |
| DW2904 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 13 | 8 | 20 | 26 | 22 | 16 | 17 | 24 | 15 | 11 | 10 | 16 | 21 |
| DW3009 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 12 | 30 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW3114 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 30 | 30 | 31 | 14 | 15 | 31 | 28 | 31 | 30 | 29 | 29 |
| DW3190 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 29 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW3306 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 3 | 17 | 21 | 9 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW3543 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 29 | 27 | 30 | 24 | 29 | 29 | 29 | 30 |
| DW3623 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW3787 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 25 | 31 | 28 | 31 | 30 | 31 | 30 |
| DW3790 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 |
| DW3974 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 31 | 28 | 28 | 30 | 31 | 30 |
| DW4096 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 31 | 24 | 0 | 0 | 0 | 0 |
| DW4097 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW4102 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| DW4137 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 31 | 25 | 31 | 30 | 31 | 25 |
| DW4247 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 28 | 31 | 30 | 31 | 30 |
| DW4358 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 28 | 31 | 30 | 31 | 30 |
| DW4429 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 28 | 31 | 30 | 31 | 30 |
| DW4544 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 31 | 30 | 31 | 30 |
| DW4567 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 31 | 30 | 31 | 30 |
| DW4568 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 31 | 13 | 0 | 0 |
| DW4569 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 31 | 30 | 31 | 30 |
| DW4601 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 3 | 6 | 6 |
| DW4610 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 31 | 30 | 29 | 28 |
| DW4630 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 31 | 30 | 31 | 30 |
| DW4682 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 9 | 22 | 23 |
| DW4767 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 22 | 31 | 30 |
| DW4811 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 18 | 31 | 30 |
| DW4814 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 30 | 28 |
| DW4890 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 31 | 30 |
| DW4932 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 31 | 30 |
| DW4967 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 30 | 29 |
| DW5042 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 30 |
| DW5045 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 26 |
| DW5059 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| DW5066 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 30 |
| DW5083 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 30 |
| DW5095 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 30 |
| DW5218 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 |
| F1BIV-3 | 28 | 28 | 30 | 31 | 30 | 31 | 28 | 19 | 30 | 24 | 22 | 29 | 31 | 31 | 30 | 25 | 0 | 31 | 31 | 28 | 30 | 28 | 31 | 12 |
| F1GMA | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| F1HCI | 26 | 12 | 22 | 25 | 29 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 27 | 28 | 28 | 23 | 30 | 25 | 24 | 27 | 27 | 26 | 29 | 23 |
| F1IKD | 30 | 31 | 30 | 30 | 30 | 28 | 30 | 28 | 30 | 30 | 17 | 12 | 31 | 31 | 29 | 5 | 3 | 31 | 29 | 27 | 4 | 30 | 31 | 28 |
| F1TIV-5 | 31 | 29 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 24 | 31 | 30 | 28 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| F2FT | 19 | 22 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 29 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 25 | 31 | 27 | 31 | 30 | 31 | 30 |
| F4CEP-12 | 19 | 31 | 30 | 31 | 30 | 31 | 31 | 27 | 31 | 30 | 23 | 30 | 7 | 29 | 30 | 29 | 30 | 31 | 31 | 28 | 31 | 30 | 30 | 12 |
| F4UJU-3 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 26 | 0 | 0 | 13 | 14 | 7 | 8 | 0 | 10 | 11 |
| F4UJU-5 | 0 | 0 | 0 | 0 | 18 | 20 | 26 | 11 | 0 | 26 | 30 | 21 | 28 | 30 | 15 | 20 | 20 | 20 | 22 | 7 | 0 | 5 | 5 | 30 |
| F5VMH-5 | 26 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 30 | 30 |
| F5YN-5 | 0 | 0 | 21 | 29 | 28 | 4 | 31 | 24 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| F6CNB-5 | 0 | 10 | 30 | 26 | 30 | 31 | 30 | 28 | 31 | 30 | 30 | 30 | 27 | 31 | 30 | 31 | 30 | 31 | 30 | 28 | 31 | 30 | 31 | 30 |
| F6DEV-5 | 15 | 26 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 19 | 28 | 26 | 30 | 31 | 26 | 21 | 30 | 17 | 23 | 28 | 31 | 30 | 25 | 30 |
| F6GZM-5 | 31 | 30 | 26 | 31 | 30 | 31 | 31 | 28 | 31 | 26 | 23 | 30 | 31 | 30 | 26 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 26 | 25 |
| F6HBW | 0 | 12 | 30 | 31 | 27 | 31 | 31 | 28 | 31 | 28 | 31 | 30 | 30 | 29 | 30 | 31 | 30 | 31 | 31 | 28 | 31 | 30 | 31 | 30 |
| F8AEJ | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| FM5BW | 21 | 20 | 10 | 23 | 28 | 30 | 25 | 18 | 0 | 0 | 0 | 22 | 26 | 20 | 2 | 0 | 0 | 22 | 27 | 28 | 29 | 26 | 23 | 19 |
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