$\left(GDP(I)_t/GDP(I)_{t-1}\right)^4,$ &  \bf 0.02 &  &  &  \bf 0.86 &  &  &  \bf 0.34 & 0.66 \\ latest & (0.18) &  &  & (0.18) &  &  & (0.25) &  \\  &  \bf 0.03 &  \bf -0.02 &  &  \bf 0.81 &  \bf 0.10 &  &  \bf 0.24 & 0.66 \\  & (0.19) & (0.18) &  & (0.20) & (0.17) &  & (0.29) &  \\  &  &  \bf -0.17 &  &  &  \bf 0.66 &  &  \bf 1.34 & 0.22 \\  &  & (0.28) &  &  & (0.28) &  & (0.45) &  \\  \hline $\left(GDP(I)_t/GDP(I)_{t-1}\right)^4,$ &  &  \bf -0.17 &  &  &  \bf 0.67 &  &  \bf 1.31 & 0.26 \\ initial (3rd) &  & (0.21) &  &  & (0.21) &  & (0.32) &  \\  &  &  &  \bf -0.43 &  &  &  \bf 0.69 &  \bf 1.91 & 0.09 \\  &  &  & (0.21) &  &  & (0.24) & (0.40) &  \\  \hline 
