\begin{table}%t9
\caption{\label{tab:abundo}Relative abundances $n_{\xi} / n_{{\rm b}}$ of oxygen species at redshifts $z=1000$, $z=100$ and $z=10$ in the SBBC (left), NSBBC1 (middle) and NSBBC2 (right) models.}
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\par
\begin{tabular}{l l l l l l l l l l}
\hline
\hline
& & SBBC & & & NSBBC1 & & & NSBBC2 &\\
\hline
Species & $z=1000$ & $z=100$ & $z=10$ & $z=1000$ & $z=100$ & $z=10$ & $z=1000$ & $z=100$ & $z=10$\\
\hline\noalign{\smallskip}
$[{\rm O}]$ & $3.2 \times 10^{-19}$ & $3.2 \times 10^{-19}$ & $3.2 \times 10^{-19}$ & $3.4 \times 10^{-19}$ & $3.4 \times 10^{-19}$ & $3.4 \times 10^{-19}$ & $8.2 \times 10^{-17}$ & $8.2 \times 10^{-17}$ & $8.2 \times 10^{-17}$\\
$[{\rm O}^+]$ & $2.7 \times 10^{-22}$ & $6.0 \times 10^{-24}$ & $0.0$ & $2.8 \times 10^{-22}$ & $6.2 \times 10^{-24}$ & $0.0$ & $6.9 \times 10^{-20}$ & $1.5 \times 10^{-21}$ & $0.0$\\
$[{\rm O}^-]$ & $4.1 \times 10^{-28}$ & $6.7 \times 10^{-32}$ & $6.4 \times 10^{-35}$ & $4.2 \times 10^{-28}$ & $7.0 \times 10^{-32}$ & $7.0 \times 10^{-35}$ & $1.0 \times 10^{-25}$ & $1.7 \times 10^{-29}$ & $1.7 \times 10^{-32}$\\
$[{\rm OH}]$ & $1.8 \times 10^{-26}$ & $2.5 \times 10^{-24}$ & $1.2 \times 10^{-23}$ & $1.9 \times 10^{-26}$ & $2.6 \times 10^{-24}$ & $1.3 \times 10^{-23}$ & $4.7 \times 10^{-24}$ & $6.2 \times 10^{-22}$ & $3.1 \times 10^{-21}$\\
$[{\rm OH}^+]$ & $1.3 \times 10^{-28}$ & $8.8 \times 10^{-26}$ & $5.2 \times 10^{-26}$ & $1.4 \times 10^{-28}$ & $9.2 \times 10^{-26}$ & $5.4 \times 10^{-26}$ & $3.3 \times 10^{-26}$ & $2.2 \times 10^{-23}$ & $1.3 \times 10^{-23}$\\
$[{\rm H_2O}]$ & $1.1 \times 10^{-37}$ & $1.0 \times 10^{-27}$ & $3.3 \times 10^{-28}$ & $1.1 \times 10^{-37}$ & $1.1 \times 10^{-27}$ & $3.7 \times 10^{-28}$ & $2.8 \times 10^{-35}$ & $2.7 \times 10^{-25}$ & $9.2 \times 10^{-26}$\\
$[{\rm H_2O}^+]$ & $2.9 \times 10^{-39}$ & $1.1 \times 10^{-29}$ & $4.4 \times 10^{-31}$ & $3.1 \times 10^{-39}$ & $1.2 \times 10^{-29}$ & $4.9 \times 10^{-31}$ & $7.6 \times 10^{-37}$ & $2.8 \times 10^{-27}$ & $1.2 \times 10^{-28}$\\
\hline
\end{tabular}
\end{table}