Model-geometry metrics for models at 4.5 Å resolution or better. The number at the top of each bar shows the percentage of structures that fall into the category. x axis: percentages of outliers (rotamer, Ramachandran and Cβ deviation) and clashscore value. Curves show by-year average percentages of Ramachandran, rotamer and Cβ deviation outliers, as well as values of clashscore. For clarity in presentation, the percentages of rotamer and Ramachandran plot outliers are scaled by 1/3 and the clashscore is scaled by 1/10.