Year | control | control | control | control |
Costant | −1.470 | −1.129 | 1.601** | 0.551 |
| (−1.423) | (−1.544) | (2.382) | (0.803) |
Pseudo/R2 | 0.0042 | 0.0042 | 0.0032 | 0.0022 |
N | 607 | 607 | 607 | 607 |