Variables	Type of test	without constant and without trend	With constant and without trend	With constante and trend	Critical value (5%)	Stat of test	Decisions
AAGR	ADF	yes	no	No	−1.947665	−4.187011	I(1)
AAGR	PP	yes	no	No	−1.946996	−2.763288	I(1)
AVA	ADF	yes	no	No	−1.948313	−2.125097	I(1)
AVA	PP	yes	no	No	−1.946996	−2.612717	I(1)
IVA	ADF	yes	no	No	−1.612229	−1.720570	I(1)
IVA	PP	yes	no	No	−1.946996	−2.820162	I(1)
GFCF	ADF	yes	no	No	−1.947665	−3.007740	I(1)
GFCF	PP	yes	no	No	−1.946996	−2.526056	I(1)
CPI	ADF	yes	no	No	−1.948313	−2.436811	I(1)
CPI	PP	yes	no	No	−1.946996	−3.366829	I(1)