| ar1 | ar2 | ar3 | ar4 | ma1 | ma2 |
| 1.003631 | −0.664803 | 0.050354 | −0.137936 | −1.560858 | 0.849602 |
S.e. | 0.345902 | 0.376814 | 0.295947 | 0.268431 | 0.254467 | 0.246728 |