Here are the key findings on field-level completeness for your Salesforce contacts:

Overall fill rates (across all ~2,000 contacts):
• Email: 100%
• First name: 100%
• Last name: 100%
• Contact status: 100%
• Contact roles: 100%
• Signup date (ddn_signup_date_c): 29.15%
• Combined average across these six fields: 88.19%

Monthly trend (for the ~600 records that do have a signup date, grouped by ddn_signup_date_c):
– All months show 100% fill for email, first name, last name, status, roles, and signup date (because the analysis filters out records with null signup dates).

Interpretation:
– Core demographics (email, names) and status/roles have been consistently complete.
– The only gap is in the ddn_signup_date_c field, which is populated on less than a third of records (29.15%).
– Among the subset of records where a signup date exists, completeness has been uniformly 100% month over month—i.e., there is no detectable upward trend, because records without any signup date are excluded from the monthly view.

Recommendation:
To improve overall data completeness, focus on capturing the signup date during contact creation. Once that field is consistently filled, your overall completeness rate will rise from 88% toward 100%.