Partial resolution of issue with email server: We have switched to a different email server while our hosting service is fixing an issue with its system. Mail sent while we did not have email service is queued, and will be delivered when the hosting service implements a fix and we switch back to their email server (which may take several days).
Each graph shows, for each year and each field, the percentage of positions listing that field as a relevant field. The fields shown by default in the chart are the core fields and a few newer ones. Use the checkboxes to display graphs for the fields you want to see.
Check/uncheck all