Variables	Test statistics	1% C.V.	5% C.V	10% C.V.	Stationary
LnHV	0.408	−2.577	−1.942	−1.616	No
DLnHV	−24.385	−2.577	−1.942	−1.616	YES
LnIncome	0.092	−2.577	−1.942	−1.616	No
DLnIncome	−20.166	−2.577	−1.942	−1.616	YES
UE	−1.281	−2.577	−1.942	−1.616	No
DUE	−11.643	−2.577	−1.942	−1.616	YES
LnM2	6.879	−2.577	−1.942	−1.616	No
DLnM2	−13.924	−2.577	−1.942	−1.616	Yes
CPI	−1.098	−2.577	−1.942	−1.616	No
DCPI	−14.496	−2.577	−1.942	−1.616	Yes