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

For AsF (Arsenic monofluoride)

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) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ
Moller Plesset perturbation MP2=FULL -0.000233 -0.005561 -0.012448 -0.013467 -0.036347 -0.036347 -0.037991 -0.401233 -0.401233 -0.109524 -0.117024 -0.011357 -0.064618 -0.106565 -0.013907 -0.070390 -0.109964
MP3=FULL         -0.034944   -0.067688       -0.098608 -0.010156 -0.056638        
MP4=FULL   -0.005295     -0.036611       -0.384062     -0.010918 -0.063071   -0.013470 -0.068629  
B2PLYP=FULL -0.000089 -0.001669 -0.003861 -0.004068 -0.011653 -0.011653 -0.012149 -0.119583 -0.119583 -0.034739 -0.034872 -0.003538 -0.019515   -0.004316 -0.021183  
Quadratic configuration interaction QCISD(T)=FULL         -0.036344             -0.010748 -0.060814   -0.013248 -0.066228  
QCISD(TQ)=FULL         -0.036131   -0.037756         -0.010621 -0.059710 -0.099339 -0.013076 -0.065104 -0.103573
Coupled Cluster CCSD=FULL         -0.035287           -0.104167 -0.010289 -0.058716 -0.098210 -0.012685 -0.064116 -0.101208
CCSD(T)=FULL         -0.036316           -0.106559 -0.010742 -0.060701 -0.100520 -0.013235 -0.066116 -0.082054
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ