Think of the Value as the dead zone for the analog stick. 0 would be perfectly center and 100 would be perfectly in whatever direction. It should look like this since no controller will be perfect.
Analog Stick X Axis is Greater than 10 -> Go Right
Analog Stick X Axis is Less than -10 -> Go Left
Analog Stick Y Axis is Less than -10 -> Go Up
Analog Stick Y Axis is Greater than 10 -> Go Down