Listed below are blood platelet counts (1000 cells/ $\mu \mathrm{L}$ ) randomly selected from adults in the United States. Why does it not make sense to construct a histogram for this data set?
$$
\begin{array}{llllllllll}
191 & 286 & 263 & 193 & 193 & 215 & 162 & 646 & 250 & 386
\end{array}
$$