Matrix Row Switching

$$A = \begin{bmatrix} 1 & 0 & 0 & 0 & 0 \\ 0 & 0 & 1 & 0 & 0 \\ 0 & 0 & 0 & 0 & 1 \\ 0 & 0 & 0 & 1 & 0 \\ 0 & 1 & 0 & 0 & 0 \end{bmatrix}$$

What is the minimum number of row switches required to turn $A$ into the identity matrix (i.e. the 1's lined up diagonally from top-left to bottom-right)?