Volume of a truncated ellipsoid

Let $V$ be the volume of the region $$\bigl\{(x,y,z)\in\mathbb{R}^3:x^2+y^2+\tfrac{z^2}{4}\le 1\text{ and }|z|\le 1\bigr\}.$$ Then $\dfrac{V}{\pi}$ is equal to __________ (round off to 2 decimal places)