Fig. 3From: Charting the landscape of graphical displays for meta-analysis and systematic reviews: a comprehensive review, taxonomy, and feature analysisEvolution of graphical displays for meta-analytic data over time. For each year, the cumulative number of graphical displays available for meta-analytic data is shown. From the total of 208 ascertained plots, the 156 plots with retrievable year of introduction (see Table 3) are includedBack to article page