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

For SiF3 (Silicon trifluoride radical)

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 aug-cc-pVDZ aug-cc-pVTZ cc-pV(T+d)Z cc-pCVTZ
Moller Plesset perturbation MP2=FULL -0.002874 -0.011908 -0.018683 -0.007660 -0.019570 -0.019570 -0.021977 -0.179947 -0.179947 -0.042558 -0.084215 -0.013915 -0.096025 -0.017444 -0.104822 -0.145230 -0.480529
MP3=FULL         -0.018925   -0.021362       -0.085253 -0.013200 -0.095809        
MP4=FULL   -0.011332     -0.019353       -0.181344     -0.013347 -0.097267 -0.016990 -0.106338    
B2PLYP=FULL -0.000943 -0.003613 -0.005724 -0.002329 -0.005932 -0.005932 -0.006643 -0.051993 -0.051993 -0.012801 -0.024329 -0.004196 -0.028354 -0.005260 -0.030874    
Quadratic configuration interaction QCISD(T)=FULL         -0.019323             -0.013342 -0.097214 -0.016990 -0.106316    
Coupled Cluster CCSD=FULL         -0.018963         -0.042302 -0.085366 -0.013105 -0.095914 -0.016698 -0.105036 -0.146522 -0.486599
CCSD(T)=FULL         -0.019328           -0.086165 -0.013355 -0.097213 -0.017004 -0.106320 -0.148419 -0.490154
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 aug-cc-pVDZ aug-cc-pVTZ cc-pV(T+d)Z cc-pCVTZ