$\left(GDP(I)_t/GDP(I)_{t-1}\right)^4,$ &  \bf 0.03 &  &  &  \bf 0.84 &  &  &  \bf 0.42 & 0.61 \\ latest & (0.22) &  &  & (0.23) &  &  & (0.33) &  \\  &  &  \bf -0.38 &  &  &  \bf 0.80 &  &  \bf 1.45 & 0.15 \\  &  & (0.31) &  &  & (0.27) &  & (0.46) &  \\  \hline $\left(GDP(I)_t/GDP(I)_{t-1}\right)^4,$ &  &  \bf -0.24 &  &  &  \bf 0.71 &  &  \bf 1.30 & 0.20 \\ initial (3rd) &  & (0.21) &  &  & (0.21) &  & (0.36) &  \\  &  &  &  \bf -0.88 &  &  &  \bf 1.17 &  \bf 1.91 & 0.16 \\  &  &  & (0.27) &  &  & (0.29) & (0.52) &  \\  \hline 
