relay voltages

please rank the voltages in order from highest to lowest

Pull-In, Drop-Out, Hold-In

I know that Pull-In Voltage is always higher than Drop-Out, but I'm not sure if Hold-In voltage is higher than both, lower than both or right in the middle.

thanks

Its in the middle ..... not enough to pull in and more than enough to keep the actuator in place ..... too low and it drops.