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

For GeH3F (monofluorogermane)

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 cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVDZ daug-cc-pVTZ
Moller Plesset perturbation MP2=FULL -0.001454 -0.005652 -0.012199 -0.016201 -0.035667 -0.037813 -0.039593 -0.413191 -0.415782 -0.111660 -0.469661 -0.156352 -0.012870 -0.079328 -0.122158 -0.016717 -0.090630 -0.135673 -0.017797 -0.097104
B2PLYP=FULL -0.000659 -0.001731 -0.003828 -0.005509 -0.012107 -0.012752 -0.013338 -0.125162 -0.125942 -0.036608 -0.142347 -0.046702 -0.004056 -0.024009   -0.005234 -0.027237   -0.005566 -0.029158
Quadratic configuration interaction QCISD(T)=FULL         -0.036487           -0.437981   -0.012318 -0.073794   -0.016009 -0.083929   -0.017039 -0.089867
Coupled Cluster CCSD=FULL         -0.035244         -0.106552 -0.431234 -0.138227 -0.011724 -0.071228 -0.110237 -0.015251 -0.081350 -0.121686 -0.016229 -0.087297
CCSD(T)=FULL         -0.036454           -0.437611 -0.140416 -0.012297 -0.073612 -0.112845 -0.015975 -0.083746 -0.124345 -0.017003 -0.089687
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 cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVDZ daug-cc-pVTZ