AvailabilityPlease select a month from the table below.
Counts of parameter records by month | 1983 | 5 | 14 | 14 | 14 |
| 1983 | 4 | 220 | 220 | 220 |
| 1983 | 3 | 202 | 202 | 202 |
| 1983 | 2 | 172 | 172 | 172 |
| 1983 | 1 | 235 | 235 | 235 |
| 1982 | 12 | 227 | 227 | 227 |
| 1982 | 11 | 192 | 192 | 192 |
| 1982 | 10 | 210 | 210 | 210 |
| 1982 | 9 | 218 | 218 | 218 |
| 1982 | 8 | 233 | 233 | 233 |
| 1982 | 7 | 159 | 159 | 159 |
| 1982 | 6 | 110 | 110 | 110 |
| 1982 | 5 | 143 | 143 | 143 |
| 1982 | 4 | 105 | 105 | 105 |
| 1982 | 3 | 122 | 122 | 122 |
| 1982 | 2 | 96 | 96 | 96 |
| 1982 | 1 | 109 | 109 | 109 |
| 1981 | 12 | 119 | 119 | 119 |
| 1981 | 11 | 115 | 115 | 115 |
| 1981 | 10 | 117 | 117 | 117 |
| 1981 | 9 | 114 | 114 | 114 |
| 1981 | 8 | 118 | 118 | 118 |
| 1981 | 7 | 73 | 73 | 73 |
| 1981 | 6 | 86 | 86 | 86 |
| 1981 | 5 | 101 | 101 | 101 |
| 1981 | 4 | 62 | 62 | 62 |
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