| Number | Threshold | RSS | MSE | F-Stat | Prob |
2000-2005 | 1 | −10.92 | 4383.45 | 26.560 | 9.45 | 0.042 |
2006-2019 | 1 | −5.58 | 349.19 | 4.891 | 11.02 | 0.030 |