Top panels: effective-temperature histograms for GES iDR5 stars (solid line), and SB1 candidates from sets 1 (red) and 2 (blue). Left panels: main sequence stars and right panels: giant stars. Bottom panels: corrected SB1 fractions as a function of T_eff for SB1 candidates from sets 1 and 2 (red and blue dots, respectively). The dots are centred on the median T_eff in each spectral type and the T_eff range in each spectral type is illustrated by the horizontal error bars. Yellow data points from Duchêne & Kraus (2013) correspond to the total binary rather than the SB1 fraction which is limited to shorter orbital periods (see text for details) and are not directly comparable with other datasets.