Charts on these pages can be used for free, unless otherwise noted. Please credit The Outlier for the data and charts. Extended credits can be found in the citing notes attached to each chart where appropriate. Registering a free account gives you access to downloadable versions of the charts and the underlying data. If you do use any of these charts or the data we would appreciate you letting us know. It's always good to know if what we're doing is useful. You can email us at insights@theoutlier.co.za.