| Series | M-test | ADF-test | ||
| t-value | p-value | t-value | p-value | |
| Yz1 1957-2008 | −7.698 | 6.32 × 10−10 | −7.698 | <1.00 × 10−2 |
| Yz2 1957-2008 | −11.795 | 8.69 × 10−16 | −11.795 | <1.00 × 10−2 |
| Yz3 1957-2008 | −10.531 | 4.53 × 10−14 | −10.531 | <1.00 × 10−2 |
| L 1949-2008 | −10.655 | 4.37 × 10−15 | −10.655 | <1.00 × 10−2 |
| Pn 1949-2008 | −10.750 | 3.12 × 10−15 | −10.750 | <1.00 × 10−2 |
| Pf 1949-2008 | −13.030 | <2.20 × 10−16 | −13.025 | <1.00 × 10−2 |
| Of 1949-2008 | −11.161 | 7.36 × 10−16 | −11.161 | <1.00 × 10−2 |
| Om 1949-2008 | −11.345 | 3.88 × 10−16 | −11.345 | <1.00 × 10−2 |