Time-averaged distribution of disc-centre bolometric intensity predicted by the two solar models with new input physics but different chemical compositions, sunA09 (AGSS09 composition) and sunA21 (AAG21 composition), as well as the reference model with unmodified input physics, sunRef (AGSS09 composition). The bolometric intensity is normalised by its mean value 〈I〉, and the distribution function is normalised such that its integration over I/〈I〉 is equal to one.