| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 1987 election | 82 |
|
| 2 | 1987 world | 27 |
|
| 3 | 1987 stock | 24 |
|
| 4 | 1987 act | 22 |
|
| 5 | 1987 crash | 18 |
|
| 6 | 1987 budget | 10 |
|
| 7 | 1987 constitution | 10 |
|
| 8 | 1987 exchange | 9 |
|
| 9 | 1987 coup | 9 |
|
| 10 | 1987 campaign | 8 |
|
| 11 | 1987 statement | 8 |
|
| 12 | 1987 agreement | 6 |
|
| 13 | 1987 report | 6 |
|
| 14 | 1987 issue | 5 |
|
