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

For LiBH4 (Lithium borohydride)

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 -0.001157 -0.002101 -0.002101 -0.002303 -0.007165 -0.007773 -0.008323 -0.031249 -0.031542 -0.012429 -0.029563 -0.006780 -0.030477 -0.045873 -0.011374 -0.035524 -0.049753
MP4=FULL   -0.002069     -0.007398       -0.035083     -0.007159 -0.033827   -0.012385 -0.039419  
Coupled Cluster CCSD=FULL         -0.007321           -0.032731 -0.007111 -0.033639 -0.050360 -0.012318 -0.039203 -0.053909
CCSD(T)=FULL         -0.007397           -0.032873 -0.007157 -0.033873   -0.012398 -0.039468  
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