  We analyze the full counting statistics of a multiorbital Kondo effect in a
quantum dotwith the SU(N) symmetry in the framework of the renormalized
perturbation theory. The current probability distribution function is
calculated for an arbitrary dot-site Coulomb repulsion $U$ in the particle-hole
symmetric case. The resulting cumulant up to the leading nonlinear term of
applied bias voltages indicates two types of electron transfer, respectively
carrying charge $e$ and $2e$, with different $N$-dependences. The cross
correlation between different orbital currents shows exponential enhancement
with respect to $U$, which directly addresses formation of the orbital-singlet
state.
