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

For BF (Boron 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) 6-311+G(3df,2p) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ aug-cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ
Moller Plesset perturbation MP2=FULL -0.000520 -0.003139 -0.003139 -0.002347 -0.006864 -0.006864 -0.007322 -0.035636 -0.035636 -0.010247 -0.041960 -0.041960 -0.032307 -0.003589 -0.022905 -0.054346 -0.004394 -0.026447 -0.055192 -0.022905 -0.070657 -0.098854 -0.098991 -0.004495 -0.027887
MP3=FULL         -0.006707   -0.019211                             -0.102285 -0.102431    
MP4=FULL -0.000393 -0.002891 -0.002891 -0.002133 -0.006745 -0.006745 -0.007206 -0.036864 -0.036864 -0.010061 -0.043573 -0.043573 -0.033786 -0.003285 -0.023046 -0.056479 -0.004077 -0.026867 -0.057361     -0.102694 -0.102815    
B2PLYP=FULL -0.000161 -0.000931 -0.000931 -0.000700 -0.002043 -0.002043 -0.002176 -0.010136 -0.010136 -0.003011 -0.011984 -0.011984 -0.009193 -0.001058 -0.006649 -0.015550 -0.001302 -0.007659 -0.015793     -0.027917 -0.027959 -0.001333 -0.008068
Quadratic configuration interaction QCISD(T)=FULL         -0.006684   -0.007142       -0.043530     -0.003231 -0.022999 -0.056409 -0.004020 -0.026825 -0.057293     -0.102600 -0.102728 -0.004121 -0.028414
Coupled Cluster CCSD=FULL -0.000358 -0.002786 -0.002786 -0.002020 -0.006565 -0.006565 -0.007017 -0.036541 -0.036541 -0.009840 -0.043111 -0.043111 -0.033514 -0.003178 -0.022735 -0.055860 -0.003959 -0.026561 -0.056745     -0.101921 -0.102045 -0.004059 -0.028140
CCSD(T)=FULL -0.000359 -0.002832 -0.002832 -0.002066 -0.006685 -0.006685 -0.007143 -0.036784 -0.036784 -0.010002 -0.043529 -0.043529 -0.033721 -0.003231 -0.023007 -0.056410 -0.004022 -0.026835 -0.057296 -0.023007 -0.074299 -0.102600 -0.102729 -0.004123 -0.028423
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) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ aug-cc-pCVTZ daug-cc-pVDZ daug-cc-pVTZ