Why doesn't my overshoot animation overshoot?

Question

Here is my animation resource:

<set
    xmlns:android="http://schemas.android.com/apk/res/android"&gt;

    <translate
        android:interpolator="@android:anim/overshoot_interpolator"
        android:fromYDelta="+17%p"
        android:toYDelta="0"
        android:duration="2660" />
</set>

When I run the animation, it only goes to the desired position, not beyond (and then back). Why?