Describe the following data numerically:
$$
\begin{array}{llllll}
(4,53) & (10,65) & (15,48) & (10,66) & (8,46) & (5,56) \\
(7,60) & (11,57) & (12,49) & (14,70) & (10,54) & (7,56) \\
(9,50) & (8,52) & (11,59) & (10,66) & (8,49) & (5,50)
\end{array}
$$