\begin{table}[htbp]
\centering\scriptsize
\caption{Task B — MAE (×100) by level, horizon 3}\label{tab:het_b_level}
\begin{threeparttable}
\begin{tabular}{lrrr}
\toprule
Model & municipality & province & region \\
\midrule
No change & 4.38 & 2.44 & 3.58 \\
Mean growth & 4.22 & 2.00 & 3.25 \\
Momentum & 4.39 & 2.73 & 3.73 \\
Random walk with drift & 4.52 & 1.90 & 3.27 \\
Seasonal naive & 4.71 & 1.37 & 2.85 \\
AR(2), cell & 3.95 & 2.06 & 3.14 \\
Local linear trend & 6.84 & 3.16 & 5.22 \\
Ridge (panel) & 3.73 & 2.06 & 2.78 \\
LightGBM (panel) & 3.36 & 1.52 & 2.47 \\
MLP (panel) & 4.04 & 2.08 & 3.04 \\
LSTM & 4.06 & 2.36 & 3.31 \\
GRU & 3.85 & 2.06 & 3.06 \\
TCN & 3.98 & 1.91 & 3.27 \\
TFT-lite & 4.34 & 2.09 & 3.46 \\
BHPF & 3.78 & 2.11 & 2.86 \\
RAREF & 3.80 & 2.12 & 2.82 \\
QANSS & 3.75 & 1.77 & 2.57 \\
DSGFN & 3.93 & 1.90 & 2.84 \\
QREFA & 3.67 & 1.66 & 2.57 \\
\bottomrule
\end{tabular}
\end{threeparttable}
\end{table}