About Data sources used to collect Unidata Core Versus Non-Core Institutions Data:

• Workshop data
• Download data
• Mailinglist data
• Support data
• Website registration data

Please note the following when reviewing this data:

• Core institutions = US-based, degree granting universities, colleges and technical schools and EDU entities.
• Undetermined = unable to determine the type and/or location data needed to ascertain whether the user is from a core institution.