How could we fit these tables into a page each?
TABLE 1
\begin{sidewaystable}[ht]
\centering % used for centering table
\begin{tabular}{l c c c c c c c c c c c}
\hline %inserts double horizontal lines
& \multicolumn{3}{c}{Agriculture} & & \multicolumn{3}{c}{Industry}& & \multicolumn{3}{c}{Services}\\
\cline{2-4} \cline{6-8} \cline{10-12}
& Male & Female & \% of GDP && Male & Female & \% of GDP && Male & Female & \% of GDP \\
\cline{2-4} \cline{6-8} \cline{10-12}
\textbf{Africa} &&&&&&&&&&&\\
Liberia\footnote{Data of 2010}&49.5&48.3&53.1&&13.5&4.8&4.8&&37&46.8&37.9\\
South Africa\footnote{Data of 2011}&5.5&3.5&2.5&&32.8&13.2&29.2&&58.3&68.4&68.3\\
\textbf{Asia}&&&&&&&&&&&\\
Cambodia$^b$&55&56.6&36.7&&16.3&17.5&23.5&&28.7&26&39.8\\
Indonesia$^b$&37&35&14.7&&24&15&47.2&&40&50&38.1\\
Malaysia$^a$&16&8.5&10.4&&31.3&21&40.3&&52.8&70.5&48.5\\
Sri Lanka$^a$&30.2&37.8&12.1&&23.9&24.8&29.4&&28.3&27.2&57.8\\
Philippines$^b$&41.3&22.5&12.8&&17.7&9.9&31.5&&41.1&67.6&55.7\\
Thailand$^b$&40.5&36.6&12.4&&22.9&18&41.2&&36.6&45.4&46.5\\
Bhutan$^b$&53.3&67.8&15.9&&9.8&8.5&43.9&&36.9&23.7&40.2\\
\textbf{Latin America}&&&&&&&&&&&\\
Colombia$^a$&26.1&5&7.1&&22.7&15.8&35&&51&79.1&57.9\\
Costa Rica$^a$&20.1&4.3&7.1&&24.9&11.4&26.2&&54.6&84.2&66.7\\
Honduras$^a$&49.9&11.9&12.5&&18.6&21.2&26.5&&31.3&66.7&60.9\\
Mexico$^a$&18.6&4&3.9&&30.1&17.8&34.7&&50.5&77.5&61.4\\
Nicaragua$^a$&44.2&15.2&18.6&&17.6&14.8&23.8&&38.1&69.8&57.6\\
\textbf{Developed Countries}&&&&&&&&&&&\\
United Kingdom$^b$&1.7&0.7&0.7&&29.1&7.5&21.6&&68.5&91.2&77.7\\
United States$^a$&2.3&0.8&1.2&&25.1&7.2&19.8&&71.7&91.9&79\\
[1ex] % [1ex] adds vertical space
\hline \hline
\footnotesize Source: \cite{wb}, tabs. 2.3 (p.47), 4.2 (p.76)
\end{tabular}
\end{sidewaystable}
TABLE 2
\begin{sidewaystable}[ht]
\centering % used for centering table
\begin{tabular}{l c c c c c c}
\hline %inserts double horizontal lines
& \textbf{GNI} & \textbf{Life} & \textbf{Prevalence of} & \textbf{Health} & \textbf{Access to} & \textbf{Access to} \\
& \textbf{per capita} & \textbf{expectancy} & \textbf{under-nourishment} & \textbf{expenditure} & \textbf{improved} & \textbf{ improved}\\
&&&&& \textbf{water source} & \textbf{sanitation facilities}\\
& \textit{constant 2005 US \$ (2011)} & \textit{total (years)} & \textit{\% of population} & \textit{\$ (2011)} & \textit{\% of population (2010)} & \textit{\% of population}\\
\hline% inserts single horizontal line
\textbf{World} & 7519.76 & 70.54 & 12.76 & 951.58 & 88$^w$ & 63$^w$ \\
\textbf{Low Income} & 407.79 & 61.14 & 28.15 & 31.17 & 65 & 37 \\
\textbf{Middle Income} & 2589.99 & 69.92 & 12.65 & 245.71 & 90 & 59 \\
\textbf{High Income} & 30638.66 & 78.88 & 5 & 4607.2 & 100 & 100 \\
[1ex] % [1ex] adds vertical space
\hline \hline
\end{tabular}
\end{sidewaystable}
Best Answer
To narrow the tables you should drop empty columns and maybe reorganize them a bit. And there are several other points to improve them.
Another prerequisite is an appropriate type area by e.g. »geometry« to make the tables fit the page. Alternatively you can decrease the font size inside the
tableenvironment (but beforetabular). The corresponding modifications for the first table could look like this. I'm sure you will be able to apply that to the second one.