Null Hypothesis: TP has a unit root

Exogenous: Constant

Bandwidth: 2 (Newey-West automatic) using Bartlett kernel

Adj. t-Stat

Prob.*

Phillips-Perron test statistic

−1.471855

0.5338

Test critical values:

1% level

−3.670170

5% level

−2.963972

10% level

−2.621007