| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over four years | 8 |
|
| 2 | over two years | 8 |
|
| 3 | over five years | 6 |
|
| 4 | over 10 years | 6 |
|
| 5 | over three years | 6 |
|
