2010018103

In February 2021, Aneta recorded an outdoor temperature in Ostrava-Poruba, always measured at $2$ p.m. The results in ${}^{\circ }\mathrm{C}$ are shown in the following table: $$\begin{array}{|lcccccccc|}\hline \text{Day}& 1.& 2.& 3.& 4.& 5.& 6.& 7.& 8.\\ \text{Temperature }{(}^{\circ }\mathrm{C})& -1& 3& 7& 8& 3& 0& -4& -5\\ \\ \text{Day}& 9.& 10.& 11.& 12.& 13.& 14.& 15.& 16.\\ \text{Temperature }{(}^{\circ }\mathrm{C})& -4& -3& -6& -4& -3& 2& -2& 0\\ \\ \text{Day}& 17.& 18.& 19.& 20.& 21.& 22.& 23.& 24.\\ \text{Temperature }{(}^{\circ }\mathrm{C})& 3& 8& 4& 5& 5& 8& 5& 16\\ \\ \text{Day}& 25.& 26.& 27.& 28.& & & & \\ \text{Temperature }{(}^{\circ }\mathrm{C})& 15& 15& 6& 8& & & & \\ \hline\end{array}$$ Determine the mode of the recorded temperatures.