Ununhexium Ionization Energy

The Ununhexium Ionization Energy is the energy required to remove from atom one mole of electrons with subsequent production of positively charged ion of Ununhexium.
Uuh -> Uuh⁺ + e^-
This process can be repeated many times, but the energy cost is increased dramatically. The general equation for the Ununhexium is:
Uuh^N+ -> Uuh^(N+1)+ + e^-

There is no data about Ununhexium ionization energy