| Hidden layer nodes number | Mean square error | steps |
| 5 | 0.0042369 | 2000 |
| 6 | 0.0036774 | 2000 |
| 7 | 0.0029725 | 2000 |
| 8 | 0.0012786 | 1863 |
| 9 | 0.00099982 | 918 |
| 10 | 0.00097621 | 707 |
| 11 | 0.00096848 | 359 |
| 12 | 0.00096949 | 206 |
| 13 | 0.00092836 | 194 |
| 14 | 0.00097189 | 285 |