| 1980 | X | 1 | = | 1980 |
| 1980 | X | 2 | = | 3960 |
| 1980 | X | 3 | = | 5940 |
| 1980 | X | 4 | = | 7920 |
| 1980 | X | 5 | = | 9900 |
| 1980 | X | 6 | = | 11880 |
| 1980 | X | 7 | = | 13860 |
| 1980 | X | 8 | = | 15840 |
| 1980 | X | 9 | = | 17820 |
| 1980 | X | 10 | = | 19800 |
| 1980 | X | 11 | = | 21780 |
| 1980 | X | 12 | = | 23760 |
| 1980 | X | 13 | = | 25740 |
| 1980 | X | 14 | = | 27720 |
| 1980 | X | 15 | = | 29700 |
| 1980 | X | 16 | = | 31680 |
| 1980 | X | 17 | = | 33660 |
| 1980 | X | 18 | = | 35640 |
| 1980 | X | 19 | = | 37620 |
| 1980 | X | 20 | = | 39600 |