$RE\left({\widehat{V}}_{B\mathrm{.}SE}\mathrm{,}{\widehat{V}}_{MLE}\right)$

$RE\left({\widehat{V}}_{B\mathrm{.}HT}\mathrm{,}{\widehat{V}}_{MLE}\right)$

$RE\left({\widehat{V}}_{B\mathrm{.}HT}\mathrm{,}{\widehat{V}}_{B\mathrm{.}SE}\right)$

0.087746 0

0.07619190

0.868324 0