[O III]+Hβ emission line equivalent width distribution (bottom) and normalized cumulative distribution function (top). The full sample up to z ≈ 9.5, where these lines can be detected, is shown by the black step function, and divided into redshift bins as indicated by the colors. The observed distribution of the spectroscopic JWST-PRIMAL sample is compared to the larger photometric CEERS survey results from Endsley et al. (2023).