ADMV1014 Gain Specification Clarification?

In Figure 50 of the ADMV1014  datasheets , Gain is given at IF = 1 GHz , fRF 28 GHz and it is roughly 18 dB to 19 dB.  But In Figure of 17 of ADMV1014-EVALZ sheet , Gain is given at IF =1 GHz ,  fRF = 28 GHz and it is 31.31 dB . Which one is correct ? 

  

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