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Energy differences between frozen core and all electrons correlated.
MP2, MP3, MP4, B2PLYP, CCSD, and CCSD(T)

For SCl4 (Sulfur tetrachloride)

Energies in Hartree
Methods with standard basis sets
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ
Moller Plesset perturbation MP2=FULL -0.001168 -0.023805 -0.061890 -0.014891 -0.051842 -0.051842 -0.055004 -0.317219 -0.317219 -0.103211 -0.549034 -0.138299 -0.031632 -0.172643 -0.038397 -0.184725
B2PLYP=FULL -0.000367   -0.018655 -0.004512 -0.015599 -0.015599 -0.016545 -0.091461 -0.091461 -0.030781 -0.159285 -0.040656 -0.009605 -0.051319 -0.011615 -0.054741
Quadratic configuration interaction QCISD(T)=FULL                     -0.539909     -0.166774 -0.034843 -0.178881
Coupled Cluster CCSD=FULL         -0.046786         -0.091763 -0.533181 -0.132392 -0.027227 -0.162974 -0.033629 -0.174958
CCSD(T)=FULL         -0.048047           -0.539786 -0.134864 -0.028248 -0.166716 -0.034823 -0.178815
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ