Notes. The two first lines in the table gibes the results using Method 2 and Modified Method 2 together to analyse the whole sample. The line marked recalibrated presents our final result. Below this, we give the results if the sample is split according to which method is used to analyse the spectra. Column 1 indicates which methods are included in the average, Col. 2 indicates if all S/N are included or if there is a cut-off, Col. 3 gives the number of stars in the sample, Col. 4 lists the average [Fe/H], while Cols. 5 and 6 list the associated σ and error-in-the-mean ().