This calculation produces the following table:
Results for n2f2, basis=VTZ METHOD E E-ESCF CISD -308.4634948 -0.78283137 BCCD(T) -308.6251173 -0.94445391 CCSD(T) -308.6257931 -0.94512967 QCISD(T) -308.6274755 -0.94681207