to quasars (@2011arXiv1110.4371K, @2006AJ....131.2766R), shown in Figure \[fig:cumul\], that the level of contamination is high, but much of this is by design because of the large number of available fibers.

[lccc]{} Mid-IR QSO-Aa & 577 & 136 (137$^*$) & 24\
Mid-IR QSO-Ab & 10 & 2 & 20\
Mid-IR QSO-Ba & 62 & 12 & 19\
Mid-IR QSO-Bb & 1 & 0 & 0\
Mid-IR YSO-Aa & 32 & 4 & 13\
Mid-IR YSO-Ab & 16 & 1 & 6\
Mid-IR YSO-Ba & 1 & 0 & 0\
Mid-IR YSO-Bb & 3 & 0 & 0\
Mid-IR (any) & 702 & 155 (156$^*$) & 22\
X-ray (any) & 102 & 30 & 29\
Var. (any) & 350 & 107 & 31\
X-ray + Mid-IR (any) & 77 & 25 & 32\
Mid-IR + Var. (any) & 228 & 95 & 42\
Var. + X-ray (any) & 39 & 26 & 67\
\
\
Mid-IR (only) & 431 & 57 (58$^*$) & 13\
X-ray (only) & 21 & 1 & 5\
Var. (only) & 117 & 8 & 7\
\
\
X-ray + Mid-IR (only) & 43 & 3 & 7\
Mid-IR + Var. (only) & 194 & 73 & 38\
