Distribution of 𝒜 for the systems classified as a binary by Gaia. The left panel is for DR3 and the right panel for DR4. The curves are the same as in Fig. 4 (legend on top). Systems with 𝒜 − σ_𝒜 > 𝒜_triple (Class III) are represented by the purple open histogram, and systems with 𝒜 − σ_𝒜 ≤ 𝒜_triple (non-Class III) are shown with an orange filled histogram. Bins are 0.025 in width. The open histograms account for 88.7% and 82.3% of the total number of detected systems in the left and right panel, respectively.