| Stage | L-BFGS (LS) | GN (LS) | GN (Sub) | TN (LS) |
| One | 85 | 55 | 51 | 51 |
| Two | 206 | 55 | 82 | 107 |
| Three | 150 | 39 | 65 | 69 |
| Four | 105 | 44 | 62 | 95 |
| Total | 546 | 193 | 260 | 322 |