SUSY supporters had put forth a number for this prediction. Then, as noted by Peter Woit, they changed it when experimental data ruled them out. Then they were shown wrong and changed it again. Now the third prediction has proven wrong. Soon, we will reach a point where further changes in prediction will leave SUSY, and by extension string theory, practically unobservable to us, thus moving them out of the realm of science. String theory is truly being backed into a corner.